21292440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13649}}^1$

素因数の和:13676

約数の個数: 64

約数和(自身を含む): 68796000

約数和(自身を除く): 47503560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 13649, 27298, 40947, 54596, 68245, 81894, 109192, 136490, 163788, 177437, 204735, 272980, 327576, 354874, 409470, 532311, 545960, 709748, 818940, 887185, 1064622, 1419496, 1637880, 1774370, 2129244, 2661555, 3548740, 4258488, 5323110, 7097480, 10646220, 21292440]

約数ペア:

[(1, 21292440), (2, 10646220), (3, 7097480), (4, 5323110), (5, 4258488), (6, 3548740), (8, 2661555), (10, 2129244), (12, 1774370), (13, 1637880), (15, 1419496), (20, 1064622), (24, 887185), (26, 818940), (30, 709748), (39, 545960), (40, 532311), (52, 409470), (60, 354874), (65, 327576), (78, 272980), (104, 204735), (120, 177437), (130, 163788), (156, 136490), (195, 109192), (260, 81894), (312, 68245), (390, 54596), (520, 40947), (780, 27298), (1560, 13649)]