21313888

素因数分解:

$2^5\times {\mathrm{61}}^2\times {\mathrm{179}}^1$

素因数の和:311

約数の個数: 36

約数和(自身を含む): 42899220

約数和(自身を除く): 21585332

約数列:

[1, 2, 4, 8, 16, 32, 61, 122, 179, 244, 358, 488, 716, 976, 1432, 1952, 2864, 3721, 5728, 7442, 10919, 14884, 21838, 29768, 43676, 59536, 87352, 119072, 174704, 349408, 666059, 1332118, 2664236, 5328472, 10656944, 21313888]

約数ペア:

[(1, 21313888), (2, 10656944), (4, 5328472), (8, 2664236), (16, 1332118), (32, 666059), (61, 349408), (122, 174704), (179, 119072), (244, 87352), (358, 59536), (488, 43676), (716, 29768), (976, 21838), (1432, 14884), (1952, 10919), (2864, 7442), (3721, 5728)]