21854404

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{2939}}^1$

素因数の和:2980

約数の個数: 36

約数和(自身を含む): 45193680

約数和(自身を除く): 23339276

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 169, 286, 338, 572, 676, 1859, 2939, 3718, 5878, 7436, 11756, 32329, 38207, 64658, 76414, 129316, 152828, 420277, 496691, 840554, 993382, 1681108, 1986764, 5463601, 10927202, 21854404]

約数ペア:

[(1, 21854404), (2, 10927202), (4, 5463601), (11, 1986764), (13, 1681108), (22, 993382), (26, 840554), (44, 496691), (52, 420277), (143, 152828), (169, 129316), (286, 76414), (338, 64658), (572, 38207), (676, 32329), (1859, 11756), (2939, 7436), (3718, 5878)]