21970970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{499}}^1$

素因数の和:567

約数の個数: 64

約数和(自身を含む): 49248000

約数和(自身を除く): 27277030

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 37, 70, 74, 85, 119, 170, 185, 238, 259, 370, 499, 518, 595, 629, 998, 1190, 1258, 1295, 2495, 2590, 3145, 3493, 4403, 4990, 6290, 6986, 8483, 8806, 16966, 17465, 18463, 22015, 34930, 36926, 42415, 44030, 59381, 84830, 92315, 118762, 129241, 184630, 258482, 296905, 313871, 593810, 627742, 646205, 1292410, 1569355, 2197097, 3138710, 4394194, 10985485, 21970970]

約数ペア:

[(1, 21970970), (2, 10985485), (5, 4394194), (7, 3138710), (10, 2197097), (14, 1569355), (17, 1292410), (34, 646205), (35, 627742), (37, 593810), (70, 313871), (74, 296905), (85, 258482), (119, 184630), (170, 129241), (185, 118762), (238, 92315), (259, 84830), (370, 59381), (499, 44030), (518, 42415), (595, 36926), (629, 34930), (998, 22015), (1190, 18463), (1258, 17465), (1295, 16966), (2495, 8806), (2590, 8483), (3145, 6986), (3493, 6290), (4403, 4990)]