21086494

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4337}}^1$

素因数の和:4380

約数の個数: 32

約数和(自身を含む): 39354336

約数和(自身を除く): 18267842

約数列:

[1, 2, 11, 13, 17, 22, 26, 34, 143, 187, 221, 286, 374, 442, 2431, 4337, 4862, 8674, 47707, 56381, 73729, 95414, 112762, 147458, 620191, 811019, 958477, 1240382, 1622038, 1916954, 10543247, 21086494]

約数ペア:

[(1, 21086494), (2, 10543247), (11, 1916954), (13, 1622038), (17, 1240382), (22, 958477), (26, 811019), (34, 620191), (143, 147458), (187, 112762), (221, 95414), (286, 73729), (374, 56381), (442, 47707), (2431, 8674), (4337, 4862)]