20174492163

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{359}}^1\times {\mathrm{1109}}^1$

素因数の和:1624

約数の個数: 64

約数和(自身を含む): 32735232000

約数和(自身を除く): 12560739837

約数列:

[1, 3, 7, 19, 21, 57, 127, 133, 359, 381, 399, 889, 1077, 1109, 2413, 2513, 2667, 3327, 6821, 7239, 7539, 7763, 16891, 20463, 21071, 23289, 45593, 47747, 50673, 63213, 136779, 140843, 143241, 147497, 319151, 398131, 422529, 442491, 866267, 957453, 985901, 1194393, 2598801, 2676017, 2786917, 2957703, 6063869, 7564489, 8028051, 8360751, 18191607, 18732119, 22693467, 50562637, 52951423, 56196357, 151687911, 158854269, 353938459, 960690103, 1061815377, 2882070309, 6724830721, 20174492163]

約数ペア:

[(1, 20174492163), (3, 6724830721), (7, 2882070309), (19, 1061815377), (21, 960690103), (57, 353938459), (127, 158854269), (133, 151687911), (359, 56196357), (381, 52951423), (399, 50562637), (889, 22693467), (1077, 18732119), (1109, 18191607), (2413, 8360751), (2513, 8028051), (2667, 7564489), (3327, 6063869), (6821, 2957703), (7239, 2786917), (7539, 2676017), (7763, 2598801), (16891, 1194393), (20463, 985901), (21071, 957453), (23289, 866267), (45593, 442491), (47747, 422529), (50673, 398131), (63213, 319151), (136779, 147497), (140843, 143241)]