21988668

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{2999}}^1$

素因数の和:3066

約数の個数: 48

約数和(自身を含む): 56448000

約数和(自身を除く): 34459332

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 47, 52, 78, 94, 141, 156, 188, 282, 564, 611, 1222, 1833, 2444, 2999, 3666, 5998, 7332, 8997, 11996, 17994, 35988, 38987, 77974, 116961, 140953, 155948, 233922, 281906, 422859, 467844, 563812, 845718, 1691436, 1832389, 3664778, 5497167, 7329556, 10994334, 21988668]

約数ペア:

[(1, 21988668), (2, 10994334), (3, 7329556), (4, 5497167), (6, 3664778), (12, 1832389), (13, 1691436), (26, 845718), (39, 563812), (47, 467844), (52, 422859), (78, 281906), (94, 233922), (141, 155948), (156, 140953), (188, 116961), (282, 77974), (564, 38987), (611, 35988), (1222, 17994), (1833, 11996), (2444, 8997), (2999, 7332), (3666, 5998)]