21725316

素因数分解:

$2^2\times 3^2\times {\mathrm{79}}^1\times {\mathrm{7639}}^1$

素因数の和:7728

約数の個数: 36

約数和(自身を含む): 55619200

約数和(自身を除く): 33893884

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 79, 158, 237, 316, 474, 711, 948, 1422, 2844, 7639, 15278, 22917, 30556, 45834, 68751, 91668, 137502, 275004, 603481, 1206962, 1810443, 2413924, 3620886, 5431329, 7241772, 10862658, 21725316]

約数ペア:

[(1, 21725316), (2, 10862658), (3, 7241772), (4, 5431329), (6, 3620886), (9, 2413924), (12, 1810443), (18, 1206962), (36, 603481), (79, 275004), (158, 137502), (237, 91668), (316, 68751), (474, 45834), (711, 30556), (948, 22917), (1422, 15278), (2844, 7639)]