21705030

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4231}}^1$

素因数の和:4266

約数の個数: 64

約数和(自身を含む): 60940800

約数和(自身を除く): 39235770

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 27, 30, 38, 45, 54, 57, 90, 95, 114, 135, 171, 190, 270, 285, 342, 513, 570, 855, 1026, 1710, 2565, 4231, 5130, 8462, 12693, 21155, 25386, 38079, 42310, 63465, 76158, 80389, 114237, 126930, 160778, 190395, 228474, 241167, 380790, 401945, 482334, 571185, 723501, 803890, 1142370, 1205835, 1447002, 2170503, 2411670, 3617505, 4341006, 7235010, 10852515, 21705030]

約数ペア:

[(1, 21705030), (2, 10852515), (3, 7235010), (5, 4341006), (6, 3617505), (9, 2411670), (10, 2170503), (15, 1447002), (18, 1205835), (19, 1142370), (27, 803890), (30, 723501), (38, 571185), (45, 482334), (54, 401945), (57, 380790), (90, 241167), (95, 228474), (114, 190395), (135, 160778), (171, 126930), (190, 114237), (270, 80389), (285, 76158), (342, 63465), (513, 42310), (570, 38079), (855, 25386), (1026, 21155), (1710, 12693), (2565, 8462), (4231, 5130)]