21721167390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{55695301}}^1$

素因数の和:55695324

約数の個数: 32

約数和(自身を含む): 56140864416

約数和(自身を除く): 34419697026

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 55695301, 111390602, 167085903, 278476505, 334171806, 556953010, 724038913, 835429515, 1448077826, 1670859030, 2172116739, 3620194565, 4344233478, 7240389130, 10860583695, 21721167390]

約数ペア:

[(1, 21721167390), (2, 10860583695), (3, 7240389130), (5, 4344233478), (6, 3620194565), (10, 2172116739), (13, 1670859030), (15, 1448077826), (26, 835429515), (30, 724038913), (39, 556953010), (65, 334171806), (78, 278476505), (130, 167085903), (195, 111390602), (390, 55695301)]