21512439

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{367}}^1$

素因数の和:556

約数の個数: 32

約数和(自身を含む): 34621440

約数和(自身を除く): 13109001

約数列:

[1, 3, 9, 13, 27, 39, 117, 167, 351, 367, 501, 1101, 1503, 2171, 3303, 4509, 4771, 6513, 9909, 14313, 19539, 42939, 58617, 61289, 128817, 183867, 551601, 796757, 1654803, 2390271, 7170813, 21512439]

約数ペア:

[(1, 21512439), (3, 7170813), (9, 2390271), (13, 1654803), (27, 796757), (39, 551601), (117, 183867), (167, 128817), (351, 61289), (367, 58617), (501, 42939), (1101, 19539), (1503, 14313), (2171, 9909), (3303, 6513), (4509, 4771)]