21752415

素因数分解:

$3^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{2731}}^1$

素因数の和:2804

約数の個数: 32

約数和(自身を含む): 39340800

約数和(自身を除く): 17588385

約数列:

[1, 3, 5, 9, 15, 27, 45, 59, 135, 177, 295, 531, 885, 1593, 2655, 2731, 7965, 8193, 13655, 24579, 40965, 73737, 122895, 161129, 368685, 483387, 805645, 1450161, 2416935, 4350483, 7250805, 21752415]

約数ペア:

[(1, 21752415), (3, 7250805), (5, 4350483), (9, 2416935), (15, 1450161), (27, 805645), (45, 483387), (59, 368685), (135, 161129), (177, 122895), (295, 73737), (531, 40965), (885, 24579), (1593, 13655), (2655, 8193), (2731, 7965)]