21789480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{1697}}^1$

素因数の和:1818

約数の個数: 64

約数和(自身を含む): 66018240

約数和(自身を除く): 44228760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 107, 120, 214, 321, 428, 535, 642, 856, 1070, 1284, 1605, 1697, 2140, 2568, 3210, 3394, 4280, 5091, 6420, 6788, 8485, 10182, 12840, 13576, 16970, 20364, 25455, 33940, 40728, 50910, 67880, 101820, 181579, 203640, 363158, 544737, 726316, 907895, 1089474, 1452632, 1815790, 2178948, 2723685, 3631580, 4357896, 5447370, 7263160, 10894740, 21789480]

約数ペア:

[(1, 21789480), (2, 10894740), (3, 7263160), (4, 5447370), (5, 4357896), (6, 3631580), (8, 2723685), (10, 2178948), (12, 1815790), (15, 1452632), (20, 1089474), (24, 907895), (30, 726316), (40, 544737), (60, 363158), (107, 203640), (120, 181579), (214, 101820), (321, 67880), (428, 50910), (535, 40728), (642, 33940), (856, 25455), (1070, 20364), (1284, 16970), (1605, 13576), (1697, 12840), (2140, 10182), (2568, 8485), (3210, 6788), (3394, 6420), (4280, 5091)]