21878714

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{337}}^1$

素因数の和:590

約数の個数: 32

約数和(自身を含む): 38840256

約数和(自身を除く): 16961542

約数列:

[1, 2, 11, 13, 22, 26, 143, 227, 286, 337, 454, 674, 2497, 2951, 3707, 4381, 4994, 5902, 7414, 8762, 32461, 48191, 64922, 76499, 96382, 152998, 841489, 994487, 1682978, 1988974, 10939357, 21878714]

約数ペア:

[(1, 21878714), (2, 10939357), (11, 1988974), (13, 1682978), (22, 994487), (26, 841489), (143, 152998), (227, 96382), (286, 76499), (337, 64922), (454, 48191), (674, 32461), (2497, 8762), (2951, 7414), (3707, 5902), (4381, 4994)]