21692816

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{461}}^1$

素因数の和:659

約数の個数: 40

約数和(自身を含む): 44856504

約数和(自身を除く): 23163688

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 173, 272, 346, 461, 692, 922, 1384, 1844, 2768, 2941, 3688, 5882, 7376, 7837, 11764, 15674, 23528, 31348, 47056, 62696, 79753, 125392, 159506, 319012, 638024, 1276048, 1355801, 2711602, 5423204, 10846408, 21692816]

約数ペア:

[(1, 21692816), (2, 10846408), (4, 5423204), (8, 2711602), (16, 1355801), (17, 1276048), (34, 638024), (68, 319012), (136, 159506), (173, 125392), (272, 79753), (346, 62696), (461, 47056), (692, 31348), (922, 23528), (1384, 15674), (1844, 11764), (2768, 7837), (2941, 7376), (3688, 5882)]