20851902188

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2053}}^1\times {\mathrm{5279}}^1$

素因数の和:7386

約数の個数: 48

約数和(自身を含む): 40387226880

約数和(自身を除く): 19535324692

約数列:

[1, 2, 4, 13, 26, 37, 52, 74, 148, 481, 962, 1924, 2053, 4106, 5279, 8212, 10558, 21116, 26689, 53378, 68627, 75961, 106756, 137254, 151922, 195323, 274508, 303844, 390646, 781292, 987493, 1974986, 2539199, 3949972, 5078398, 10156796, 10837787, 21675574, 43351148, 140891231, 281782462, 400998119, 563564924, 801996238, 1603992476, 5212975547, 10425951094, 20851902188]

約数ペア:

[(1, 20851902188), (2, 10425951094), (4, 5212975547), (13, 1603992476), (26, 801996238), (37, 563564924), (52, 400998119), (74, 281782462), (148, 140891231), (481, 43351148), (962, 21675574), (1924, 10837787), (2053, 10156796), (4106, 5078398), (5279, 3949972), (8212, 2539199), (10558, 1974986), (21116, 987493), (26689, 781292), (53378, 390646), (68627, 303844), (75961, 274508), (106756, 195323), (137254, 151922)]