21948394

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{127}}^1$

素因数の和:199

約数の個数: 48

約数和(自身を含む): 39610368

約数和(自身を除く): 17661974

約数列:

[1, 2, 13, 17, 23, 26, 34, 46, 127, 221, 254, 289, 299, 391, 442, 578, 598, 782, 1651, 2159, 2921, 3302, 3757, 4318, 5083, 5842, 6647, 7514, 10166, 13294, 28067, 36703, 37973, 49657, 56134, 73406, 75946, 86411, 99314, 172822, 477139, 645541, 844169, 954278, 1291082, 1688338, 10974197, 21948394]

約数ペア:

[(1, 21948394), (2, 10974197), (13, 1688338), (17, 1291082), (23, 954278), (26, 844169), (34, 645541), (46, 477139), (127, 172822), (221, 99314), (254, 86411), (289, 75946), (299, 73406), (391, 56134), (442, 49657), (578, 37973), (598, 36703), (782, 28067), (1651, 13294), (2159, 10166), (2921, 7514), (3302, 6647), (3757, 5842), (4318, 5083)]