21733690

素因数分解:

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

素因数の和:199

約数の個数: 64

約数和(自身を含む): 44997120

約数和(自身を除く): 23263430

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, 1342, 1738, 2255, 2501, 3239, 3355, 4345, 4510, 4819, 5002, 6478, 6710, 8690, 9638, 12505, 16195, 24095, 25010, 27511, 32390, 35629, 48190, 53009, 55022, 71258, 106018, 137555, 178145, 197579, 265045, 275110, 356290, 395158, 530090, 987895, 1975790, 2173369, 4346738, 10866845, 21733690]

約数ペア:

[(1, 21733690), (2, 10866845), (5, 4346738), (10, 2173369), (11, 1975790), (22, 987895), (41, 530090), (55, 395158), (61, 356290), (79, 275110), (82, 265045), (110, 197579), (122, 178145), (158, 137555), (205, 106018), (305, 71258), (395, 55022), (410, 53009), (451, 48190), (610, 35629), (671, 32390), (790, 27511), (869, 25010), (902, 24095), (1342, 16195), (1738, 12505), (2255, 9638), (2501, 8690), (3239, 6710), (3355, 6478), (4345, 5002), (4510, 4819)]