21170050

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{631}}^1$

素因数の和:715

約数の個数: 48

約数和(自身を含む): 43729344

約数和(自身を除く): 22559294

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 61, 110, 122, 275, 305, 550, 610, 631, 671, 1262, 1342, 1525, 3050, 3155, 3355, 6310, 6710, 6941, 13882, 15775, 16775, 31550, 33550, 34705, 38491, 69410, 76982, 173525, 192455, 347050, 384910, 423401, 846802, 962275, 1924550, 2117005, 4234010, 10585025, 21170050]

約数ペア:

[(1, 21170050), (2, 10585025), (5, 4234010), (10, 2117005), (11, 1924550), (22, 962275), (25, 846802), (50, 423401), (55, 384910), (61, 347050), (110, 192455), (122, 173525), (275, 76982), (305, 69410), (550, 38491), (610, 34705), (631, 33550), (671, 31550), (1262, 16775), (1342, 15775), (1525, 13882), (3050, 6941), (3155, 6710), (3355, 6310)]