20148788

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{7507}}^1$

素因数の和:7583

約数の個数: 24

約数和(自身を含む): 39101664

約数和(自身を除く): 18952876

約数列:

[1, 2, 4, 11, 22, 44, 61, 122, 244, 671, 1342, 2684, 7507, 15014, 30028, 82577, 165154, 330308, 457927, 915854, 1831708, 5037197, 10074394, 20148788]

約数ペア:

[(1, 20148788), (2, 10074394), (4, 5037197), (11, 1831708), (22, 915854), (44, 457927), (61, 330308), (122, 165154), (244, 82577), (671, 30028), (1342, 15014), (2684, 7507)]