31515561

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:224

約数の個数: 80

約数和(自身を含む): 60960768

約数和(自身を除く): 29445207

約数列:

[1, 3, 7, 9, 11, 21, 27, 31, 33, 63, 77, 81, 93, 99, 163, 189, 217, 231, 279, 297, 341, 489, 567, 651, 693, 837, 891, 1023, 1141, 1467, 1793, 1953, 2079, 2387, 2511, 3069, 3423, 4401, 5053, 5379, 5859, 6237, 7161, 9207, 10269, 12551, 13203, 15159, 16137, 17577, 21483, 27621, 30807, 35371, 37653, 45477, 48411, 55583, 64449, 92421, 106113, 112959, 136431, 145233, 166749, 193347, 318339, 338877, 389081, 409293, 500247, 955017, 1016631, 1167243, 1500741, 2865051, 3501729, 4502223, 10505187, 31515561]

約数ペア:

[(1, 31515561), (3, 10505187), (7, 4502223), (9, 3501729), (11, 2865051), (21, 1500741), (27, 1167243), (31, 1016631), (33, 955017), (63, 500247), (77, 409293), (81, 389081), (93, 338877), (99, 318339), (163, 193347), (189, 166749), (217, 145233), (231, 136431), (279, 112959), (297, 106113), (341, 92421), (489, 64449), (567, 55583), (651, 48411), (693, 45477), (837, 37653), (891, 35371), (1023, 30807), (1141, 27621), (1467, 21483), (1793, 17577), (1953, 16137), (2079, 15159), (2387, 13203), (2511, 12551), (3069, 10269), (3423, 9207), (4401, 7161), (5053, 6237), (5379, 5859)]