20516955

素因数分解:

$3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1\times {\mathrm{239}}^1$

素因数の和:403

約数の個数: 32

約数和(自身を含む): 33868800

約数和(自身を除く): 13351845

約数列:

[1, 3, 5, 15, 59, 97, 177, 239, 291, 295, 485, 717, 885, 1195, 1455, 3585, 5723, 14101, 17169, 23183, 28615, 42303, 69549, 70505, 85845, 115915, 211515, 347745, 1367797, 4103391, 6838985, 20516955]

約数ペア:

[(1, 20516955), (3, 6838985), (5, 4103391), (15, 1367797), (59, 347745), (97, 211515), (177, 115915), (239, 85845), (291, 70505), (295, 69549), (485, 42303), (717, 28615), (885, 23183), (1195, 17169), (1455, 14101), (3585, 5723)]