21280890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{223}}^1\times {\mathrm{3181}}^1$

素因数の和:3414

約数の個数: 32

約数和(自身を含む): 51319296

約数和(自身を除く): 30038406

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 223, 446, 669, 1115, 1338, 2230, 3181, 3345, 6362, 6690, 9543, 15905, 19086, 31810, 47715, 95430, 709363, 1418726, 2128089, 3546815, 4256178, 7093630, 10640445, 21280890]

約数ペア:

[(1, 21280890), (2, 10640445), (3, 7093630), (5, 4256178), (6, 3546815), (10, 2128089), (15, 1418726), (30, 709363), (223, 95430), (446, 47715), (669, 31810), (1115, 19086), (1338, 15905), (2230, 9543), (3181, 6690), (3345, 6362)]