21504918

素因数分解:

$2^1\times 3^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{617}}^1$

素因数の和:816

約数の個数: 32

約数和(自身を含む): 44525664

約数和(自身を除く): 23020746

約数列:

[1, 2, 3, 6, 37, 74, 111, 157, 222, 314, 471, 617, 942, 1234, 1851, 3702, 5809, 11618, 17427, 22829, 34854, 45658, 68487, 96869, 136974, 193738, 290607, 581214, 3584153, 7168306, 10752459, 21504918]

約数ペア:

[(1, 21504918), (2, 10752459), (3, 7168306), (6, 3584153), (37, 581214), (74, 290607), (111, 193738), (157, 136974), (222, 96869), (314, 68487), (471, 45658), (617, 34854), (942, 22829), (1234, 17427), (1851, 11618), (3702, 5809)]