21480260

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{56527}}^1$

素因数の和:56555

約数の個数: 24

約数和(自身を含む): 47483520

約数和(自身を除く): 26003260

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 56527, 113054, 226108, 282635, 565270, 1074013, 1130540, 2148026, 4296052, 5370065, 10740130, 21480260]

約数ペア:

[(1, 21480260), (2, 10740130), (4, 5370065), (5, 4296052), (10, 2148026), (19, 1130540), (20, 1074013), (38, 565270), (76, 282635), (95, 226108), (190, 113054), (380, 56527)]