20211870

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{883}}^1$

素因数の和:1009

約数の個数: 64

約数和(自身を含む): 56010240

約数和(自身を除く): 35798370

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 109, 210, 218, 327, 545, 654, 763, 883, 1090, 1526, 1635, 1766, 2289, 2649, 3270, 3815, 4415, 4578, 5298, 6181, 7630, 8830, 11445, 12362, 13245, 18543, 22890, 26490, 30905, 37086, 61810, 92715, 96247, 185430, 192494, 288741, 481235, 577482, 673729, 962470, 1347458, 1443705, 2021187, 2887410, 3368645, 4042374, 6737290, 10105935, 20211870]

約数ペア:

[(1, 20211870), (2, 10105935), (3, 6737290), (5, 4042374), (6, 3368645), (7, 2887410), (10, 2021187), (14, 1443705), (15, 1347458), (21, 962470), (30, 673729), (35, 577482), (42, 481235), (70, 288741), (105, 192494), (109, 185430), (210, 96247), (218, 92715), (327, 61810), (545, 37086), (654, 30905), (763, 26490), (883, 22890), (1090, 18543), (1526, 13245), (1635, 12362), (1766, 11445), (2289, 8830), (2649, 7630), (3270, 6181), (3815, 5298), (4415, 4578)]