21616290

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{461}}^1\times {\mathrm{521}}^1$

素因数の和:995

約数の個数: 48

約数和(自身を含む): 56432376

約数和(自身を除く): 34816086

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 461, 521, 922, 1042, 1383, 1563, 2305, 2605, 2766, 3126, 4149, 4610, 4689, 5210, 6915, 7815, 8298, 9378, 13830, 15630, 20745, 23445, 41490, 46890, 240181, 480362, 720543, 1200905, 1441086, 2161629, 2401810, 3602715, 4323258, 7205430, 10808145, 21616290]

約数ペア:

[(1, 21616290), (2, 10808145), (3, 7205430), (5, 4323258), (6, 3602715), (9, 2401810), (10, 2161629), (15, 1441086), (18, 1200905), (30, 720543), (45, 480362), (90, 240181), (461, 46890), (521, 41490), (922, 23445), (1042, 20745), (1383, 15630), (1563, 13830), (2305, 9378), (2605, 8298), (2766, 7815), (3126, 6915), (4149, 5210), (4610, 4689)]