21918735

素因数分解:

$3^3\times 5^1\times {\mathrm{229}}^1\times {\mathrm{709}}^1$

素因数の和:952

約数の個数: 32

約数和(自身を含む): 39192000

約数和(自身を除く): 17273265

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 229, 687, 709, 1145, 2061, 2127, 3435, 3545, 6183, 6381, 10305, 10635, 19143, 30915, 31905, 95715, 162361, 487083, 811805, 1461249, 2435415, 4383747, 7306245, 21918735]

約数ペア:

[(1, 21918735), (3, 7306245), (5, 4383747), (9, 2435415), (15, 1461249), (27, 811805), (45, 487083), (135, 162361), (229, 95715), (687, 31905), (709, 30915), (1145, 19143), (2061, 10635), (2127, 10305), (3435, 6381), (3545, 6183)]