18557924

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{677}}^1$

素因数の和:788

約数の個数: 48

約数和(自身を含む): 41005440

約数和(自身を除く): 22447516

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 89, 154, 178, 308, 356, 623, 677, 979, 1246, 1354, 1958, 2492, 2708, 3916, 4739, 6853, 7447, 9478, 13706, 14894, 18956, 27412, 29788, 52129, 60253, 104258, 120506, 208516, 241012, 421771, 662783, 843542, 1325566, 1687084, 2651132, 4639481, 9278962, 18557924]

約数ペア:

[(1, 18557924), (2, 9278962), (4, 4639481), (7, 2651132), (11, 1687084), (14, 1325566), (22, 843542), (28, 662783), (44, 421771), (77, 241012), (89, 208516), (154, 120506), (178, 104258), (308, 60253), (356, 52129), (623, 29788), (677, 27412), (979, 18956), (1246, 14894), (1354, 13706), (1958, 9478), (2492, 7447), (2708, 6853), (3916, 4739)]