21457116

素因数分解:

$2^2\times 3^3\times {\mathrm{61}}^1\times {\mathrm{3257}}^1$

素因数の和:3331

約数の個数: 48

約数和(自身を含む): 56558880

約数和(自身を除く): 35101764

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 61, 108, 122, 183, 244, 366, 549, 732, 1098, 1647, 2196, 3257, 3294, 6514, 6588, 9771, 13028, 19542, 29313, 39084, 58626, 87939, 117252, 175878, 198677, 351756, 397354, 596031, 794708, 1192062, 1788093, 2384124, 3576186, 5364279, 7152372, 10728558, 21457116]

約数ペア:

[(1, 21457116), (2, 10728558), (3, 7152372), (4, 5364279), (6, 3576186), (9, 2384124), (12, 1788093), (18, 1192062), (27, 794708), (36, 596031), (54, 397354), (61, 351756), (108, 198677), (122, 175878), (183, 117252), (244, 87939), (366, 58626), (549, 39084), (732, 29313), (1098, 19542), (1647, 13028), (2196, 9771), (3257, 6588), (3294, 6514)]