51640911

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{227}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 89915904

約数和(自身を除く): 38274993

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 157, 161, 207, 227, 471, 483, 681, 1099, 1413, 1449, 1589, 2043, 3297, 3611, 4767, 5221, 9891, 10833, 14301, 15663, 25277, 32499, 35639, 36547, 46989, 75831, 106917, 109641, 227493, 249473, 320751, 328923, 748419, 819697, 2245257, 2459091, 5737879, 7377273, 17213637, 51640911]

約数ペア:

[(1, 51640911), (3, 17213637), (7, 7377273), (9, 5737879), (21, 2459091), (23, 2245257), (63, 819697), (69, 748419), (157, 328923), (161, 320751), (207, 249473), (227, 227493), (471, 109641), (483, 106917), (681, 75831), (1099, 46989), (1413, 36547), (1449, 35639), (1589, 32499), (2043, 25277), (3297, 15663), (3611, 14301), (4767, 10833), (5221, 9891)]