20212430

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{1451}}^1$

素因数の和:1664

約数の個数: 32

約数和(自身を含む): 41817600

約数和(自身を除く): 21605170

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 199, 398, 995, 1393, 1451, 1990, 2786, 2902, 6965, 7255, 10157, 13930, 14510, 20314, 50785, 101570, 288749, 577498, 1443745, 2021243, 2887490, 4042486, 10106215, 20212430]

約数ペア:

[(1, 20212430), (2, 10106215), (5, 4042486), (7, 2887490), (10, 2021243), (14, 1443745), (35, 577498), (70, 288749), (199, 101570), (398, 50785), (995, 20314), (1393, 14510), (1451, 13930), (1990, 10157), (2786, 7255), (2902, 6965)]