20815678

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1453}}^1$

素因数の和:1516

約数の個数: 32

約数和(自身を含む): 36640800

約数和(自身を除く): 15825122

約数列:

[1, 2, 13, 19, 26, 29, 38, 58, 247, 377, 494, 551, 754, 1102, 1453, 2906, 7163, 14326, 18889, 27607, 37778, 42137, 55214, 84274, 358891, 547781, 717782, 800603, 1095562, 1601206, 10407839, 20815678]

約数ペア:

[(1, 20815678), (2, 10407839), (13, 1601206), (19, 1095562), (26, 800603), (29, 717782), (38, 547781), (58, 358891), (247, 84274), (377, 55214), (494, 42137), (551, 37778), (754, 27607), (1102, 18889), (1453, 14326), (2906, 7163)]