21249735

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{1847}}^1$

素因数の和:1927

約数の個数: 32

約数和(自身を含む): 37255680

約数和(自身を除く): 16005945

約数列:

[1, 3, 5, 13, 15, 39, 59, 65, 177, 195, 295, 767, 885, 1847, 2301, 3835, 5541, 9235, 11505, 24011, 27705, 72033, 108973, 120055, 326919, 360165, 544865, 1416649, 1634595, 4249947, 7083245, 21249735]

約数ペア:

[(1, 21249735), (3, 7083245), (5, 4249947), (13, 1634595), (15, 1416649), (39, 544865), (59, 360165), (65, 326919), (177, 120055), (195, 108973), (295, 72033), (767, 27705), (885, 24011), (1847, 11505), (2301, 9235), (3835, 5541)]