20646558

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{227}}^1$

素因数の和:429

約数の個数: 48

約数和(自身を含む): 46665216

約数和(自身を除く): 26018658

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 163, 186, 227, 279, 326, 454, 489, 558, 681, 978, 1362, 1467, 2043, 2934, 4086, 5053, 7037, 10106, 14074, 15159, 21111, 30318, 37001, 42222, 45477, 63333, 74002, 90954, 111003, 126666, 222006, 333009, 666018, 1147031, 2294062, 3441093, 6882186, 10323279, 20646558]

約数ペア:

[(1, 20646558), (2, 10323279), (3, 6882186), (6, 3441093), (9, 2294062), (18, 1147031), (31, 666018), (62, 333009), (93, 222006), (163, 126666), (186, 111003), (227, 90954), (279, 74002), (326, 63333), (454, 45477), (489, 42222), (558, 37001), (681, 30318), (978, 21111), (1362, 15159), (1467, 14074), (2043, 10106), (2934, 7037), (4086, 5053)]