21715678980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{5107}}^1\times {\mathrm{23623}}^1$

素因数の和:28745

約数の個数: 72

約数和(自身を含む): 65886580032

約数和(自身を除く): 44170901052

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 5107, 10214, 15321, 20428, 23623, 25535, 30642, 45963, 47246, 51070, 61284, 70869, 76605, 91926, 94492, 102140, 118115, 141738, 153210, 183852, 212607, 229815, 236230, 283476, 306420, 354345, 425214, 459630, 472460, 708690, 850428, 919260, 1063035, 1417380, 2126070, 4252140, 120642661, 241285322, 361927983, 482570644, 603213305, 723855966, 1085783949, 1206426610, 1447711932, 1809639915, 2171567898, 2412853220, 3619279830, 4343135796, 5428919745, 7238559660, 10857839490, 21715678980]

約数ペア:

[(1, 21715678980), (2, 10857839490), (3, 7238559660), (4, 5428919745), (5, 4343135796), (6, 3619279830), (9, 2412853220), (10, 2171567898), (12, 1809639915), (15, 1447711932), (18, 1206426610), (20, 1085783949), (30, 723855966), (36, 603213305), (45, 482570644), (60, 361927983), (90, 241285322), (180, 120642661), (5107, 4252140), (10214, 2126070), (15321, 1417380), (20428, 1063035), (23623, 919260), (25535, 850428), (30642, 708690), (45963, 472460), (47246, 459630), (51070, 425214), (61284, 354345), (70869, 306420), (76605, 283476), (91926, 236230), (94492, 229815), (102140, 212607), (118115, 183852), (141738, 153210)]