21980020876

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2393}}^1\times {\mathrm{10987}}^1$

素因数の和:13414

約数の個数: 48

約数和(自身を含む): 44192856960

約数和(自身を除く): 22212836084

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 418, 836, 2393, 4786, 9572, 10987, 21974, 26323, 43948, 45467, 52646, 90934, 105292, 120857, 181868, 208753, 241714, 417506, 483428, 500137, 835012, 1000274, 2000548, 2296283, 4592566, 9185132, 26291891, 52583782, 105167564, 289210801, 499545929, 578421602, 999091858, 1156843204, 1998183716, 5495005219, 10990010438, 21980020876]

約数ペア:

[(1, 21980020876), (2, 10990010438), (4, 5495005219), (11, 1998183716), (19, 1156843204), (22, 999091858), (38, 578421602), (44, 499545929), (76, 289210801), (209, 105167564), (418, 52583782), (836, 26291891), (2393, 9185132), (4786, 4592566), (9572, 2296283), (10987, 2000548), (21974, 1000274), (26323, 835012), (43948, 500137), (45467, 483428), (52646, 417506), (90934, 241714), (105292, 208753), (120857, 181868)]