21732788

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1721}}^1$

素因数の和:1784

約数の個数: 48

約数和(自身を含む): 48601728

約数和(自身を除く): 26868940

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 41, 44, 77, 82, 154, 164, 287, 308, 451, 574, 902, 1148, 1721, 1804, 3157, 3442, 6314, 6884, 12047, 12628, 18931, 24094, 37862, 48188, 70561, 75724, 132517, 141122, 265034, 282244, 493927, 530068, 776171, 987854, 1552342, 1975708, 3104684, 5433197, 10866394, 21732788]

約数ペア:

[(1, 21732788), (2, 10866394), (4, 5433197), (7, 3104684), (11, 1975708), (14, 1552342), (22, 987854), (28, 776171), (41, 530068), (44, 493927), (77, 282244), (82, 265034), (154, 141122), (164, 132517), (287, 75724), (308, 70561), (451, 48188), (574, 37862), (902, 24094), (1148, 18931), (1721, 12628), (1804, 12047), (3157, 6884), (3442, 6314)]