11211110

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{577}}^1$

素因数の和:680

約数の個数: 32

約数和(自身を含む): 21224160

約数和(自身を除く): 10013050

約数列:

[1, 2, 5, 10, 29, 58, 67, 134, 145, 290, 335, 577, 670, 1154, 1943, 2885, 3886, 5770, 9715, 16733, 19430, 33466, 38659, 77318, 83665, 167330, 193295, 386590, 1121111, 2242222, 5605555, 11211110]

約数ペア:

[(1, 11211110), (2, 5605555), (5, 2242222), (10, 1121111), (29, 386590), (58, 193295), (67, 167330), (134, 83665), (145, 77318), (290, 38659), (335, 33466), (577, 19430), (670, 16733), (1154, 9715), (1943, 5770), (2885, 3886)]