20121982

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{409}}^1\times {\mathrm{1447}}^1$

素因数の和:1875

約数の個数: 16

約数和(自身を含む): 32058720

約数和(自身を除く): 11936738

約数列:

[1, 2, 17, 34, 409, 818, 1447, 2894, 6953, 13906, 24599, 49198, 591823, 1183646, 10060991, 20121982]

約数ペア:

[(1, 20121982), (2, 10060991), (17, 1183646), (34, 591823), (409, 49198), (818, 24599), (1447, 13906), (2894, 6953)]