20293965

素因数分解:

$3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 36661248

約数和(自身を除く): 16367283

約数列:

[1, 3, 5, 9, 15, 45, 53, 67, 127, 159, 201, 265, 335, 381, 477, 603, 635, 795, 1005, 1143, 1905, 2385, 3015, 3551, 5715, 6731, 8509, 10653, 17755, 20193, 25527, 31959, 33655, 42545, 53265, 60579, 76581, 100965, 127635, 159795, 302895, 382905, 450977, 1352931, 2254885, 4058793, 6764655, 20293965]

約数ペア:

[(1, 20293965), (3, 6764655), (5, 4058793), (9, 2254885), (15, 1352931), (45, 450977), (53, 382905), (67, 302895), (127, 159795), (159, 127635), (201, 100965), (265, 76581), (335, 60579), (381, 53265), (477, 42545), (603, 33655), (635, 31959), (795, 25527), (1005, 20193), (1143, 17755), (1905, 10653), (2385, 8509), (3015, 6731), (3551, 5715)]