21100170

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1$

素因数の和:220

約数の個数: 128

約数和(自身を含む): 63866880

約数和(自身を除く): 42766710

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 59, 65, 70, 78, 91, 105, 118, 130, 131, 177, 182, 195, 210, 262, 273, 295, 354, 390, 393, 413, 455, 546, 590, 655, 767, 786, 826, 885, 910, 917, 1239, 1310, 1365, 1534, 1703, 1770, 1834, 1965, 2065, 2301, 2478, 2730, 2751, 3406, 3835, 3930, 4130, 4585, 4602, 5109, 5369, 5502, 6195, 7670, 7729, 8515, 9170, 10218, 10738, 11505, 11921, 12390, 13755, 15458, 16107, 17030, 23010, 23187, 23842, 25545, 26845, 27510, 32214, 35763, 38645, 46374, 51090, 53690, 54103, 59605, 71526, 77290, 80535, 100477, 108206, 115935, 119210, 161070, 162309, 178815, 200954, 231870, 270515, 301431, 324618, 357630, 502385, 541030, 602862, 703339, 811545, 1004770, 1406678, 1507155, 1623090, 2110017, 3014310, 3516695, 4220034, 7033390, 10550085, 21100170]

約数ペア:

[(1, 21100170), (2, 10550085), (3, 7033390), (5, 4220034), (6, 3516695), (7, 3014310), (10, 2110017), (13, 1623090), (14, 1507155), (15, 1406678), (21, 1004770), (26, 811545), (30, 703339), (35, 602862), (39, 541030), (42, 502385), (59, 357630), (65, 324618), (70, 301431), (78, 270515), (91, 231870), (105, 200954), (118, 178815), (130, 162309), (131, 161070), (177, 119210), (182, 115935), (195, 108206), (210, 100477), (262, 80535), (273, 77290), (295, 71526), (354, 59605), (390, 54103), (393, 53690), (413, 51090), (455, 46374), (546, 38645), (590, 35763), (655, 32214), (767, 27510), (786, 26845), (826, 25545), (885, 23842), (910, 23187), (917, 23010), (1239, 17030), (1310, 16107), (1365, 15458), (1534, 13755), (1703, 12390), (1770, 11921), (1834, 11505), (1965, 10738), (2065, 10218), (2301, 9170), (2478, 8515), (2730, 7729), (2751, 7670), (3406, 6195), (3835, 5502), (3930, 5369), (4130, 5109), (4585, 4602)]