21725792

素因数分解:

$2^5\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{181}}^1$

素因数の和:244

約数の個数: 72

約数和(自身を含む): 48799296

約数和(自身を除く): 27073504

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 44, 62, 88, 121, 124, 176, 181, 242, 248, 341, 352, 362, 484, 496, 682, 724, 968, 992, 1364, 1448, 1936, 1991, 2728, 2896, 3751, 3872, 3982, 5456, 5611, 5792, 7502, 7964, 10912, 11222, 15004, 15928, 21901, 22444, 30008, 31856, 43802, 44888, 60016, 61721, 63712, 87604, 89776, 120032, 123442, 175208, 179552, 246884, 350416, 493768, 678931, 700832, 987536, 1357862, 1975072, 2715724, 5431448, 10862896, 21725792]

約数ペア:

[(1, 21725792), (2, 10862896), (4, 5431448), (8, 2715724), (11, 1975072), (16, 1357862), (22, 987536), (31, 700832), (32, 678931), (44, 493768), (62, 350416), (88, 246884), (121, 179552), (124, 175208), (176, 123442), (181, 120032), (242, 89776), (248, 87604), (341, 63712), (352, 61721), (362, 60016), (484, 44888), (496, 43802), (682, 31856), (724, 30008), (968, 22444), (992, 21901), (1364, 15928), (1448, 15004), (1936, 11222), (1991, 10912), (2728, 7964), (2896, 7502), (3751, 5792), (3872, 5611), (3982, 5456)]