20591868

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{607}}^1$

素因数の和:882

約数の個数: 48

約数和(自身を含む): 52706304

約数和(自身を除く): 32114436

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 257, 514, 607, 771, 1028, 1214, 1542, 1821, 2428, 2827, 3084, 3642, 5654, 6677, 7284, 8481, 11308, 13354, 16962, 20031, 26708, 33924, 40062, 80124, 155999, 311998, 467997, 623996, 935994, 1715989, 1871988, 3431978, 5147967, 6863956, 10295934, 20591868]

約数ペア:

[(1, 20591868), (2, 10295934), (3, 6863956), (4, 5147967), (6, 3431978), (11, 1871988), (12, 1715989), (22, 935994), (33, 623996), (44, 467997), (66, 311998), (132, 155999), (257, 80124), (514, 40062), (607, 33924), (771, 26708), (1028, 20031), (1214, 16962), (1542, 13354), (1821, 11308), (2428, 8481), (2827, 7284), (3084, 6677), (3642, 5654)]