20722312

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{10487}}^1$

素因数の和:10525

約数の個数: 32

約数和(自身を含む): 44049600

約数和(自身を除く): 23327288

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 10487, 20974, 41948, 83896, 136331, 199253, 272662, 398506, 545324, 797012, 1090648, 1594024, 2590289, 5180578, 10361156, 20722312]

約数ペア:

[(1, 20722312), (2, 10361156), (4, 5180578), (8, 2590289), (13, 1594024), (19, 1090648), (26, 797012), (38, 545324), (52, 398506), (76, 272662), (104, 199253), (152, 136331), (247, 83896), (494, 41948), (988, 20974), (1976, 10487)]