31957821

素因数分解:

$3^4\times 7^1\times {\mathrm{157}}^1\times {\mathrm{359}}^1$

素因数の和:535

約数の個数: 40

約数和(自身を含む): 55059840

約数和(自身を除く): 23102019

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 157, 189, 359, 471, 567, 1077, 1099, 1413, 2513, 3231, 3297, 4239, 7539, 9693, 9891, 12717, 22617, 29079, 29673, 56363, 67851, 89019, 169089, 203553, 394541, 507267, 1183623, 1521801, 3550869, 4565403, 10652607, 31957821]

約数ペア:

[(1, 31957821), (3, 10652607), (7, 4565403), (9, 3550869), (21, 1521801), (27, 1183623), (63, 507267), (81, 394541), (157, 203553), (189, 169089), (359, 89019), (471, 67851), (567, 56363), (1077, 29673), (1099, 29079), (1413, 22617), (2513, 12717), (3231, 9891), (3297, 9693), (4239, 7539)]