21121230

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1747}}^1$

素因数の和:1801

約数の個数: 64

約数和(自身を含む): 56383488

約数和(自身を除く): 35262258

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 31, 39, 62, 65, 78, 93, 130, 155, 186, 195, 310, 390, 403, 465, 806, 930, 1209, 1747, 2015, 2418, 3494, 4030, 5241, 6045, 8735, 10482, 12090, 17470, 22711, 26205, 45422, 52410, 54157, 68133, 108314, 113555, 136266, 162471, 227110, 270785, 324942, 340665, 541570, 681330, 704041, 812355, 1408082, 1624710, 2112123, 3520205, 4224246, 7040410, 10560615, 21121230]

約数ペア:

[(1, 21121230), (2, 10560615), (3, 7040410), (5, 4224246), (6, 3520205), (10, 2112123), (13, 1624710), (15, 1408082), (26, 812355), (30, 704041), (31, 681330), (39, 541570), (62, 340665), (65, 324942), (78, 270785), (93, 227110), (130, 162471), (155, 136266), (186, 113555), (195, 108314), (310, 68133), (390, 54157), (403, 52410), (465, 45422), (806, 26205), (930, 22711), (1209, 17470), (1747, 12090), (2015, 10482), (2418, 8735), (3494, 6045), (4030, 5241)]