20976751108

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{397}}^1\times {\mathrm{695239}}^1$

素因数の和:695659

約数の個数: 24

約数和(自身を含む): 38738772800

約数和(自身を除く): 17762021692

約数列:

[1, 2, 4, 19, 38, 76, 397, 794, 1588, 7543, 15086, 30172, 695239, 1390478, 2780956, 13209541, 26419082, 52838164, 276009883, 552019766, 1104039532, 5244187777, 10488375554, 20976751108]

約数ペア:

[(1, 20976751108), (2, 10488375554), (4, 5244187777), (19, 1104039532), (38, 552019766), (76, 276009883), (397, 52838164), (794, 26419082), (1588, 13209541), (7543, 2780956), (15086, 1390478), (30172, 695239)]