21218632

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{1277}}^1$

素因数の和:1381

約数の個数: 32

約数和(自身を含む): 41713920

約数和(自身を除く): 20495288

約数列:

[1, 2, 4, 8, 31, 62, 67, 124, 134, 248, 268, 536, 1277, 2077, 2554, 4154, 5108, 8308, 10216, 16616, 39587, 79174, 85559, 158348, 171118, 316696, 342236, 684472, 2652329, 5304658, 10609316, 21218632]

約数ペア:

[(1, 21218632), (2, 10609316), (4, 5304658), (8, 2652329), (31, 684472), (62, 342236), (67, 316696), (124, 171118), (134, 158348), (248, 85559), (268, 79174), (536, 39587), (1277, 16616), (2077, 10216), (2554, 8308), (4154, 5108)]