20978028

素因数分解:

$2^2\times 3^4\times {\mathrm{64747}}^1$

素因数の和:64763

約数の個数: 30

約数和(自身を含む): 54841556

約数和(自身を除く): 33863528

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 64747, 129494, 194241, 258988, 388482, 582723, 776964, 1165446, 1748169, 2330892, 3496338, 5244507, 6992676, 10489014, 20978028]

約数ペア:

[(1, 20978028), (2, 10489014), (3, 6992676), (4, 5244507), (6, 3496338), (9, 2330892), (12, 1748169), (18, 1165446), (27, 776964), (36, 582723), (54, 388482), (81, 258988), (108, 194241), (162, 129494), (324, 64747)]