21931570

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1\times {\mathrm{269}}^1$

素因数の和:570

約数の個数: 32

約数和(自身を含む): 41057280

約数和(自身を除く): 19125710

約数列:

[1, 2, 5, 10, 31, 62, 155, 263, 269, 310, 526, 538, 1315, 1345, 2630, 2690, 8153, 8339, 16306, 16678, 40765, 41695, 70747, 81530, 83390, 141494, 353735, 707470, 2193157, 4386314, 10965785, 21931570]

約数ペア:

[(1, 21931570), (2, 10965785), (5, 4386314), (10, 2193157), (31, 707470), (62, 353735), (155, 141494), (263, 83390), (269, 81530), (310, 70747), (526, 41695), (538, 40765), (1315, 16678), (1345, 16306), (2630, 8339), (2690, 8153)]