19849998

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{107}}^1\times {\mathrm{631}}^1$

素因数の和:757

約数の個数: 48

約数和(自身を含む): 46687104

約数和(自身を除く): 26837106

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 107, 147, 214, 294, 321, 631, 642, 749, 1262, 1498, 1893, 2247, 3786, 4417, 4494, 5243, 8834, 10486, 13251, 15729, 26502, 30919, 31458, 61838, 67517, 92757, 135034, 185514, 202551, 405102, 472619, 945238, 1417857, 2835714, 3308333, 6616666, 9924999, 19849998]

約数ペア:

[(1, 19849998), (2, 9924999), (3, 6616666), (6, 3308333), (7, 2835714), (14, 1417857), (21, 945238), (42, 472619), (49, 405102), (98, 202551), (107, 185514), (147, 135034), (214, 92757), (294, 67517), (321, 61838), (631, 31458), (642, 30919), (749, 26502), (1262, 15729), (1498, 13251), (1893, 10486), (2247, 8834), (3786, 5243), (4417, 4494)]