20781332

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{773}}^1$

素因数の和:848

約数の個数: 48

約数和(自身を含む): 43690752

約数和(自身を除く): 22909420

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 47, 52, 94, 143, 188, 286, 517, 572, 611, 773, 1034, 1222, 1546, 2068, 2444, 3092, 6721, 8503, 10049, 13442, 17006, 20098, 26884, 34012, 36331, 40196, 72662, 110539, 145324, 221078, 399641, 442156, 472303, 799282, 944606, 1598564, 1889212, 5195333, 10390666, 20781332]

約数ペア:

[(1, 20781332), (2, 10390666), (4, 5195333), (11, 1889212), (13, 1598564), (22, 944606), (26, 799282), (44, 472303), (47, 442156), (52, 399641), (94, 221078), (143, 145324), (188, 110539), (286, 72662), (517, 40196), (572, 36331), (611, 34012), (773, 26884), (1034, 20098), (1222, 17006), (1546, 13442), (2068, 10049), (2444, 8503), (3092, 6721)]