16220715

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{761}}^1$

素因数の和:812

約数の個数: 48

約数和(自身を含む): 31272480

約数和(自身を除く): 15051765

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 49, 87, 105, 145, 147, 203, 245, 435, 609, 735, 761, 1015, 1421, 2283, 3045, 3805, 4263, 5327, 7105, 11415, 15981, 21315, 22069, 26635, 37289, 66207, 79905, 110345, 111867, 154483, 186445, 331035, 463449, 559335, 772415, 1081381, 2317245, 3244143, 5406905, 16220715]

約数ペア:

[(1, 16220715), (3, 5406905), (5, 3244143), (7, 2317245), (15, 1081381), (21, 772415), (29, 559335), (35, 463449), (49, 331035), (87, 186445), (105, 154483), (145, 111867), (147, 110345), (203, 79905), (245, 66207), (435, 37289), (609, 26635), (735, 22069), (761, 21315), (1015, 15981), (1421, 11415), (2283, 7105), (3045, 5327), (3805, 4263)]