21661468

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{461}}^1\times {\mathrm{691}}^1$

素因数の和:1173

約数の個数: 24

約数和(自身を含む): 40282704

約数和(自身を除く): 18621236

約数列:

[1, 2, 4, 17, 34, 68, 461, 691, 922, 1382, 1844, 2764, 7837, 11747, 15674, 23494, 31348, 46988, 318551, 637102, 1274204, 5415367, 10830734, 21661468]

約数ペア:

[(1, 21661468), (2, 10830734), (4, 5415367), (17, 1274204), (34, 637102), (68, 318551), (461, 46988), (691, 31348), (922, 23494), (1382, 15674), (1844, 11747), (2764, 7837)]