291223107

素因数分解:

$3^8\times 7^1\times {\mathrm{17}}^1\times {\mathrm{373}}^1$

素因数の和:421

約数の個数: 72

約数和(自身を含む): 529996896

約数和(自身を除く): 238773789

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 81, 119, 153, 189, 243, 357, 373, 459, 567, 729, 1071, 1119, 1377, 1701, 2187, 2611, 3213, 3357, 4131, 5103, 6341, 6561, 7833, 9639, 10071, 12393, 15309, 19023, 23499, 28917, 30213, 37179, 44387, 45927, 57069, 70497, 86751, 90639, 111537, 133161, 171207, 211491, 260253, 271917, 399483, 513621, 634473, 780759, 815751, 1198449, 1540863, 1903419, 2447253, 3595347, 4622589, 5710257, 10786041, 13867767, 17130771, 32358123, 41603301, 97074369, 291223107]

約数ペア:

[(1, 291223107), (3, 97074369), (7, 41603301), (9, 32358123), (17, 17130771), (21, 13867767), (27, 10786041), (51, 5710257), (63, 4622589), (81, 3595347), (119, 2447253), (153, 1903419), (189, 1540863), (243, 1198449), (357, 815751), (373, 780759), (459, 634473), (567, 513621), (729, 399483), (1071, 271917), (1119, 260253), (1377, 211491), (1701, 171207), (2187, 133161), (2611, 111537), (3213, 90639), (3357, 86751), (4131, 70497), (5103, 57069), (6341, 45927), (6561, 44387), (7833, 37179), (9639, 30213), (10071, 28917), (12393, 23499), (15309, 19023)]