21453796

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3467}}^1$

素因数の和:3508

約数の個数: 48

約数和(自身を含む): 48940416

約数和(自身を除く): 27486620

約数列:

[1, 2, 4, 7, 13, 14, 17, 26, 28, 34, 52, 68, 91, 119, 182, 221, 238, 364, 442, 476, 884, 1547, 3094, 3467, 6188, 6934, 13868, 24269, 45071, 48538, 58939, 90142, 97076, 117878, 180284, 235756, 315497, 412573, 630994, 766207, 825146, 1261988, 1532414, 1650292, 3064828, 5363449, 10726898, 21453796]

約数ペア:

[(1, 21453796), (2, 10726898), (4, 5363449), (7, 3064828), (13, 1650292), (14, 1532414), (17, 1261988), (26, 825146), (28, 766207), (34, 630994), (52, 412573), (68, 315497), (91, 235756), (119, 180284), (182, 117878), (221, 97076), (238, 90142), (364, 58939), (442, 48538), (476, 45071), (884, 24269), (1547, 13868), (3094, 6934), (3467, 6188)]