21103412990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{971}}^1$

素因数の和:1170

約数の個数: 128

約数和(自身を含む): 43737200640

約数和(自身を除く): 22633787650

約数列:

[1, 2, 5, 10, 11, 22, 41, 55, 61, 79, 82, 110, 122, 158, 205, 305, 395, 410, 451, 610, 671, 790, 869, 902, 971, 1342, 1738, 1942, 2255, 2501, 3239, 3355, 4345, 4510, 4819, 4855, 5002, 6478, 6710, 8690, 9638, 9710, 10681, 12505, 16195, 21362, 24095, 25010, 27511, 32390, 35629, 39811, 48190, 53009, 53405, 55022, 59231, 71258, 76709, 79622, 106018, 106810, 118462, 137555, 153418, 178145, 197579, 199055, 265045, 275110, 296155, 356290, 383545, 395158, 398110, 437921, 530090, 592310, 651541, 767090, 843799, 875842, 987895, 1303082, 1687598, 1975790, 2173369, 2189605, 2428471, 3145069, 3257705, 4218995, 4346738, 4379210, 4679249, 4856942, 6290138, 6515410, 8437990, 9358498, 10866845, 12142355, 15725345, 21733690, 23396245, 24284710, 26713181, 31450690, 34595759, 46792490, 51471739, 53426362, 69191518, 102943478, 133565905, 172978795, 191849209, 257358695, 267131810, 345957590, 383698418, 514717390, 959246045, 1918492090, 2110341299, 4220682598, 10551706495, 21103412990]

約数ペア:

[(1, 21103412990), (2, 10551706495), (5, 4220682598), (10, 2110341299), (11, 1918492090), (22, 959246045), (41, 514717390), (55, 383698418), (61, 345957590), (79, 267131810), (82, 257358695), (110, 191849209), (122, 172978795), (158, 133565905), (205, 102943478), (305, 69191518), (395, 53426362), (410, 51471739), (451, 46792490), (610, 34595759), (671, 31450690), (790, 26713181), (869, 24284710), (902, 23396245), (971, 21733690), (1342, 15725345), (1738, 12142355), (1942, 10866845), (2255, 9358498), (2501, 8437990), (3239, 6515410), (3355, 6290138), (4345, 4856942), (4510, 4679249), (4819, 4379210), (4855, 4346738), (5002, 4218995), (6478, 3257705), (6710, 3145069), (8690, 2428471), (9638, 2189605), (9710, 2173369), (10681, 1975790), (12505, 1687598), (16195, 1303082), (21362, 987895), (24095, 875842), (25010, 843799), (27511, 767090), (32390, 651541), (35629, 592310), (39811, 530090), (48190, 437921), (53009, 398110), (53405, 395158), (55022, 383545), (59231, 356290), (71258, 296155), (76709, 275110), (79622, 265045), (106018, 199055), (106810, 197579), (118462, 178145), (137555, 153418)]