31061151

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{491}}^1$

素因数の和:585

約数の個数: 40

約数和(自身を含む): 51435648

約数和(自身を除く): 20374497

約数列:

[1, 3, 9, 11, 27, 33, 71, 81, 99, 213, 297, 491, 639, 781, 891, 1473, 1917, 2343, 4419, 5401, 5751, 7029, 13257, 16203, 21087, 34861, 39771, 48609, 63261, 104583, 145827, 313749, 383471, 437481, 941247, 1150413, 2823741, 3451239, 10353717, 31061151]

約数ペア:

[(1, 31061151), (3, 10353717), (9, 3451239), (11, 2823741), (27, 1150413), (33, 941247), (71, 437481), (81, 383471), (99, 313749), (213, 145827), (297, 104583), (491, 63261), (639, 48609), (781, 39771), (891, 34861), (1473, 21087), (1917, 16203), (2343, 13257), (4419, 7029), (5401, 5751)]