20856308

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{557}}^1$

素因数の和:632

約数の個数: 48

約数和(自身を含む): 42747264

約数和(自身を除く): 21890956

約数列:

[1, 2, 4, 11, 22, 23, 37, 44, 46, 74, 92, 148, 253, 407, 506, 557, 814, 851, 1012, 1114, 1628, 1702, 2228, 3404, 6127, 9361, 12254, 12811, 18722, 20609, 24508, 25622, 37444, 41218, 51244, 82436, 140921, 226699, 281842, 453398, 474007, 563684, 906796, 948014, 1896028, 5214077, 10428154, 20856308]

約数ペア:

[(1, 20856308), (2, 10428154), (4, 5214077), (11, 1896028), (22, 948014), (23, 906796), (37, 563684), (44, 474007), (46, 453398), (74, 281842), (92, 226699), (148, 140921), (253, 82436), (407, 51244), (506, 41218), (557, 37444), (814, 25622), (851, 24508), (1012, 20609), (1114, 18722), (1628, 12811), (1702, 12254), (2228, 9361), (3404, 6127)]