28220493

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{577}}^1$

素因数の和:741

約数の個数: 32

約数和(自身を含む): 45944064

約数和(自身を除く): 17723571

約数列:

[1, 3, 7, 17, 21, 51, 119, 137, 357, 411, 577, 959, 1731, 2329, 2877, 4039, 6987, 9809, 12117, 16303, 29427, 48909, 68663, 79049, 205989, 237147, 553343, 1343833, 1660029, 4031499, 9406831, 28220493]

約数ペア:

[(1, 28220493), (3, 9406831), (7, 4031499), (17, 1660029), (21, 1343833), (51, 553343), (119, 237147), (137, 205989), (357, 79049), (411, 68663), (577, 48909), (959, 29427), (1731, 16303), (2329, 12117), (2877, 9809), (4039, 6987)]