20809445886

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{471677}}^1$

素因数の和:471750

約数の個数: 64

約数和(自身を含む): 49809196800

約数和(自身を除く): 28999750914

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 43, 54, 57, 86, 114, 129, 171, 258, 342, 387, 513, 774, 817, 1026, 1161, 1634, 2322, 2451, 4902, 7353, 14706, 22059, 44118, 471677, 943354, 1415031, 2830062, 4245093, 8490186, 8961863, 12735279, 17923726, 20282111, 25470558, 26885589, 40564222, 53771178, 60846333, 80656767, 121692666, 161313534, 182538999, 241970301, 365077998, 385360109, 483940602, 547616997, 770720218, 1095233994, 1156080327, 2312160654, 3468240981, 6936481962, 10404722943, 20809445886]

約数ペア:

[(1, 20809445886), (2, 10404722943), (3, 6936481962), (6, 3468240981), (9, 2312160654), (18, 1156080327), (19, 1095233994), (27, 770720218), (38, 547616997), (43, 483940602), (54, 385360109), (57, 365077998), (86, 241970301), (114, 182538999), (129, 161313534), (171, 121692666), (258, 80656767), (342, 60846333), (387, 53771178), (513, 40564222), (774, 26885589), (817, 25470558), (1026, 20282111), (1161, 17923726), (1634, 12735279), (2322, 8961863), (2451, 8490186), (4902, 4245093), (7353, 2830062), (14706, 1415031), (22059, 943354), (44118, 471677)]