2211615

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1$

素因数の和:101

約数の個数: 72

約数和(自身を含む): 4801680

約数和(自身を除く): 2590065

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 35, 45, 49, 51, 59, 63, 85, 105, 119, 147, 153, 177, 245, 255, 295, 315, 357, 413, 441, 531, 595, 735, 765, 833, 885, 1003, 1071, 1239, 1785, 2065, 2205, 2499, 2655, 2891, 3009, 3717, 4165, 5015, 5355, 6195, 7021, 7497, 8673, 9027, 12495, 14455, 15045, 18585, 21063, 26019, 35105, 37485, 43365, 45135, 49147, 63189, 105315, 130095, 147441, 245735, 315945, 442323, 737205, 2211615]

約数ペア:

[(1, 2211615), (3, 737205), (5, 442323), (7, 315945), (9, 245735), (15, 147441), (17, 130095), (21, 105315), (35, 63189), (45, 49147), (49, 45135), (51, 43365), (59, 37485), (63, 35105), (85, 26019), (105, 21063), (119, 18585), (147, 15045), (153, 14455), (177, 12495), (245, 9027), (255, 8673), (295, 7497), (315, 7021), (357, 6195), (413, 5355), (441, 5015), (531, 4165), (595, 3717), (735, 3009), (765, 2891), (833, 2655), (885, 2499), (1003, 2205), (1071, 2065), (1239, 1785)]