20848653819

素因数分解:

$3^2\times 7^2\times {\mathrm{1823}}^1\times {\mathrm{25933}}^1$

素因数の和:27776

約数の個数: 36

約数和(自身を含む): 35051979456

約数和(自身を除く): 14203325637

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 1823, 5469, 12761, 16407, 25933, 38283, 77799, 89327, 114849, 181531, 233397, 267981, 544593, 803943, 1270717, 1633779, 3812151, 11436453, 47275859, 141827577, 330931013, 425482731, 992793039, 2316517091, 2978379117, 6949551273, 20848653819]

約数ペア:

[(1, 20848653819), (3, 6949551273), (7, 2978379117), (9, 2316517091), (21, 992793039), (49, 425482731), (63, 330931013), (147, 141827577), (441, 47275859), (1823, 11436453), (5469, 3812151), (12761, 1633779), (16407, 1270717), (25933, 803943), (38283, 544593), (77799, 267981), (89327, 233397), (114849, 181531)]