19718808

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{521}}^1$

素因数の和:632

約数の個数: 64

約数和(自身を含む): 52617600

約数和(自身を除く): 32898792

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 83, 114, 152, 166, 228, 249, 332, 456, 498, 521, 664, 996, 1042, 1563, 1577, 1992, 2084, 3126, 3154, 4168, 4731, 6252, 6308, 9462, 9899, 12504, 12616, 18924, 19798, 29697, 37848, 39596, 43243, 59394, 79192, 86486, 118788, 129729, 172972, 237576, 259458, 345944, 518916, 821617, 1037832, 1643234, 2464851, 3286468, 4929702, 6572936, 9859404, 19718808]

約数ペア:

[(1, 19718808), (2, 9859404), (3, 6572936), (4, 4929702), (6, 3286468), (8, 2464851), (12, 1643234), (19, 1037832), (24, 821617), (38, 518916), (57, 345944), (76, 259458), (83, 237576), (114, 172972), (152, 129729), (166, 118788), (228, 86486), (249, 79192), (332, 59394), (456, 43243), (498, 39596), (521, 37848), (664, 29697), (996, 19798), (1042, 18924), (1563, 12616), (1577, 12504), (1992, 9899), (2084, 9462), (3126, 6308), (3154, 6252), (4168, 4731)]