21659886

素因数分解:

$2^1\times 3^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{227}}^1$

素因数の和:291

約数の個数: 80

約数和(自身を含む): 52968960

約数和(自身を除く): 31309074

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 31, 38, 54, 57, 62, 81, 93, 114, 162, 171, 186, 227, 279, 342, 454, 513, 558, 589, 681, 837, 1026, 1178, 1362, 1539, 1674, 1767, 2043, 2511, 3078, 3534, 4086, 4313, 5022, 5301, 6129, 7037, 8626, 10602, 12258, 12939, 14074, 15903, 18387, 21111, 25878, 31806, 36774, 38817, 42222, 47709, 63333, 77634, 95418, 116451, 126666, 133703, 189999, 232902, 267406, 349353, 379998, 401109, 569997, 698706, 802218, 1139994, 1203327, 2406654, 3609981, 7219962, 10829943, 21659886]

約数ペア:

[(1, 21659886), (2, 10829943), (3, 7219962), (6, 3609981), (9, 2406654), (18, 1203327), (19, 1139994), (27, 802218), (31, 698706), (38, 569997), (54, 401109), (57, 379998), (62, 349353), (81, 267406), (93, 232902), (114, 189999), (162, 133703), (171, 126666), (186, 116451), (227, 95418), (279, 77634), (342, 63333), (454, 47709), (513, 42222), (558, 38817), (589, 36774), (681, 31806), (837, 25878), (1026, 21111), (1178, 18387), (1362, 15903), (1539, 14074), (1674, 12939), (1767, 12258), (2043, 10602), (2511, 8626), (3078, 7037), (3534, 6129), (4086, 5301), (4313, 5022)]