21660336

素因数分解:

$2^4\times 3^2\times {\mathrm{349}}^1\times {\mathrm{431}}^1$

素因数の和:794

約数の個数: 60

約数和(自身を含む): 60933600

約数和(自身を除く): 39273264

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 349, 431, 698, 862, 1047, 1293, 1396, 1724, 2094, 2586, 2792, 3141, 3448, 3879, 4188, 5172, 5584, 6282, 6896, 7758, 8376, 10344, 12564, 15516, 16752, 20688, 25128, 31032, 50256, 62064, 150419, 300838, 451257, 601676, 902514, 1203352, 1353771, 1805028, 2406704, 2707542, 3610056, 5415084, 7220112, 10830168, 21660336]

約数ペア:

[(1, 21660336), (2, 10830168), (3, 7220112), (4, 5415084), (6, 3610056), (8, 2707542), (9, 2406704), (12, 1805028), (16, 1353771), (18, 1203352), (24, 902514), (36, 601676), (48, 451257), (72, 300838), (144, 150419), (349, 62064), (431, 50256), (698, 31032), (862, 25128), (1047, 20688), (1293, 16752), (1396, 15516), (1724, 12564), (2094, 10344), (2586, 8376), (2792, 7758), (3141, 6896), (3448, 6282), (3879, 5584), (4188, 5172)]