21097000

素因数分解:

$2^3\times 5^3\times {\mathrm{17}}^2\times {\mathrm{73}}^1$

素因数の和:128

約数の個数: 96

約数和(自身を含む): 53160120

約数和(自身を除く): 32063120

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 68, 73, 85, 100, 125, 136, 146, 170, 200, 250, 289, 292, 340, 365, 425, 500, 578, 584, 680, 730, 850, 1000, 1156, 1241, 1445, 1460, 1700, 1825, 2125, 2312, 2482, 2890, 2920, 3400, 3650, 4250, 4964, 5780, 6205, 7225, 7300, 8500, 9125, 9928, 11560, 12410, 14450, 14600, 17000, 18250, 21097, 24820, 28900, 31025, 36125, 36500, 42194, 49640, 57800, 62050, 72250, 73000, 84388, 105485, 124100, 144500, 155125, 168776, 210970, 248200, 289000, 310250, 421940, 527425, 620500, 843880, 1054850, 1241000, 2109700, 2637125, 4219400, 5274250, 10548500, 21097000]

約数ペア:

[(1, 21097000), (2, 10548500), (4, 5274250), (5, 4219400), (8, 2637125), (10, 2109700), (17, 1241000), (20, 1054850), (25, 843880), (34, 620500), (40, 527425), (50, 421940), (68, 310250), (73, 289000), (85, 248200), (100, 210970), (125, 168776), (136, 155125), (146, 144500), (170, 124100), (200, 105485), (250, 84388), (289, 73000), (292, 72250), (340, 62050), (365, 57800), (425, 49640), (500, 42194), (578, 36500), (584, 36125), (680, 31025), (730, 28900), (850, 24820), (1000, 21097), (1156, 18250), (1241, 17000), (1445, 14600), (1460, 14450), (1700, 12410), (1825, 11560), (2125, 9928), (2312, 9125), (2482, 8500), (2890, 7300), (2920, 7225), (3400, 6205), (3650, 5780), (4250, 4964)]