21450690

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1499}}^1$

素因数の和:1568

約数の個数: 64

約数和(自身を含む): 58320000

約数和(自身を除く): 36869310

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 53, 54, 90, 106, 135, 159, 265, 270, 318, 477, 530, 795, 954, 1431, 1499, 1590, 2385, 2862, 2998, 4497, 4770, 7155, 7495, 8994, 13491, 14310, 14990, 22485, 26982, 40473, 44970, 67455, 79447, 80946, 134910, 158894, 202365, 238341, 397235, 404730, 476682, 715023, 794470, 1191705, 1430046, 2145069, 2383410, 3575115, 4290138, 7150230, 10725345, 21450690]

約数ペア:

[(1, 21450690), (2, 10725345), (3, 7150230), (5, 4290138), (6, 3575115), (9, 2383410), (10, 2145069), (15, 1430046), (18, 1191705), (27, 794470), (30, 715023), (45, 476682), (53, 404730), (54, 397235), (90, 238341), (106, 202365), (135, 158894), (159, 134910), (265, 80946), (270, 79447), (318, 67455), (477, 44970), (530, 40473), (795, 26982), (954, 22485), (1431, 14990), (1499, 14310), (1590, 13491), (2385, 8994), (2862, 7495), (2998, 7155), (4497, 4770)]