21580060

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^2\times {\mathrm{1283}}^1$

素因数の和:1350

約数の個数: 36

約数和(自身を含む): 46971288

約数和(自身を除く): 25391228

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 841, 1283, 1682, 2566, 3364, 4205, 5132, 6415, 8410, 12830, 16820, 25660, 37207, 74414, 148828, 186035, 372070, 744140, 1079003, 2158006, 4316012, 5395015, 10790030, 21580060]

約数ペア:

[(1, 21580060), (2, 10790030), (4, 5395015), (5, 4316012), (10, 2158006), (20, 1079003), (29, 744140), (58, 372070), (116, 186035), (145, 148828), (290, 74414), (580, 37207), (841, 25660), (1283, 16820), (1682, 12830), (2566, 8410), (3364, 6415), (4205, 5132)]