21729330

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{11497}}^1$

素因数の和:11520

約数の個数: 64

約数和(自身を含む): 66228480

約数和(自身を除く): 44499150

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 11497, 22994, 34491, 57485, 68982, 80479, 103473, 114970, 160958, 172455, 206946, 241437, 310419, 344910, 402395, 482874, 517365, 620838, 724311, 804790, 1034730, 1207185, 1448622, 1552095, 2172933, 2414370, 3104190, 3621555, 4345866, 7243110, 10864665, 21729330]

約数ペア:

[(1, 21729330), (2, 10864665), (3, 7243110), (5, 4345866), (6, 3621555), (7, 3104190), (9, 2414370), (10, 2172933), (14, 1552095), (15, 1448622), (18, 1207185), (21, 1034730), (27, 804790), (30, 724311), (35, 620838), (42, 517365), (45, 482874), (54, 402395), (63, 344910), (70, 310419), (90, 241437), (105, 206946), (126, 172455), (135, 160958), (189, 114970), (210, 103473), (270, 80479), (315, 68982), (378, 57485), (630, 34491), (945, 22994), (1890, 11497)]