21706790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1$

素因数の和:114

約数の個数: 96

約数和(自身を含む): 50397120

約数和(自身を除く): 28690330

約数列:

[1, 2, 5, 7, 10, 14, 17, 29, 34, 35, 37, 58, 70, 74, 85, 119, 145, 170, 185, 203, 238, 259, 289, 290, 370, 406, 493, 518, 578, 595, 629, 986, 1015, 1073, 1190, 1258, 1295, 1445, 2023, 2030, 2146, 2465, 2590, 2890, 3145, 3451, 4046, 4403, 4930, 5365, 6290, 6902, 7511, 8381, 8806, 10115, 10693, 10730, 15022, 16762, 17255, 18241, 20230, 21386, 22015, 34510, 36482, 37555, 41905, 44030, 53465, 58667, 74851, 75110, 83810, 91205, 106930, 117334, 127687, 149702, 182410, 255374, 293335, 310097, 374255, 586670, 620194, 638435, 748510, 1276870, 1550485, 2170679, 3100970, 4341358, 10853395, 21706790]

約数ペア:

[(1, 21706790), (2, 10853395), (5, 4341358), (7, 3100970), (10, 2170679), (14, 1550485), (17, 1276870), (29, 748510), (34, 638435), (35, 620194), (37, 586670), (58, 374255), (70, 310097), (74, 293335), (85, 255374), (119, 182410), (145, 149702), (170, 127687), (185, 117334), (203, 106930), (238, 91205), (259, 83810), (289, 75110), (290, 74851), (370, 58667), (406, 53465), (493, 44030), (518, 41905), (578, 37555), (595, 36482), (629, 34510), (986, 22015), (1015, 21386), (1073, 20230), (1190, 18241), (1258, 17255), (1295, 16762), (1445, 15022), (2023, 10730), (2030, 10693), (2146, 10115), (2465, 8806), (2590, 8381), (2890, 7511), (3145, 6902), (3451, 6290), (4046, 5365), (4403, 4930)]