18859408

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{809}}^1$

素因数の和:895

約数の個数: 40

約数和(自身を含む): 38568960

約数和(自身を除く): 19709552

約数列:

[1, 2, 4, 8, 16, 31, 47, 62, 94, 124, 188, 248, 376, 496, 752, 809, 1457, 1618, 2914, 3236, 5828, 6472, 11656, 12944, 23312, 25079, 38023, 50158, 76046, 100316, 152092, 200632, 304184, 401264, 608368, 1178713, 2357426, 4714852, 9429704, 18859408]

約数ペア:

[(1, 18859408), (2, 9429704), (4, 4714852), (8, 2357426), (16, 1178713), (31, 608368), (47, 401264), (62, 304184), (94, 200632), (124, 152092), (188, 100316), (248, 76046), (376, 50158), (496, 38023), (752, 25079), (809, 23312), (1457, 12944), (1618, 11656), (2914, 6472), (3236, 5828)]