20213205

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1429}}^1$

素因数の和:1501

約数の個数: 32

約数和(自身を含む): 34594560

約数和(自身を除く): 14381355

約数列:

[1, 3, 5, 15, 23, 41, 69, 115, 123, 205, 345, 615, 943, 1429, 2829, 4287, 4715, 7145, 14145, 21435, 32867, 58589, 98601, 164335, 175767, 292945, 493005, 878835, 1347547, 4042641, 6737735, 20213205]

約数ペア:

[(1, 20213205), (3, 6737735), (5, 4042641), (15, 1347547), (23, 878835), (41, 493005), (69, 292945), (115, 175767), (123, 164335), (205, 98601), (345, 58589), (615, 32867), (943, 21435), (1429, 14145), (2829, 7145), (4287, 4715)]