21343868

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{307}}^1$

素因数の和:522

約数の個数: 48

約数和(自身を含む): 46362624

約数和(自身を除く): 25018756

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 191, 307, 364, 382, 614, 764, 1228, 1337, 2149, 2483, 2674, 3991, 4298, 4966, 5348, 7982, 8596, 9932, 15964, 17381, 27937, 34762, 55874, 58637, 69524, 111748, 117274, 234548, 410459, 762281, 820918, 1524562, 1641836, 3049124, 5335967, 10671934, 21343868]

約数ペア:

[(1, 21343868), (2, 10671934), (4, 5335967), (7, 3049124), (13, 1641836), (14, 1524562), (26, 820918), (28, 762281), (52, 410459), (91, 234548), (182, 117274), (191, 111748), (307, 69524), (364, 58637), (382, 55874), (614, 34762), (764, 27937), (1228, 17381), (1337, 15964), (2149, 9932), (2483, 8596), (2674, 7982), (3991, 5348), (4298, 4966)]