291239559

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:209

約数の個数: 72

約数和(自身を含む): 480253488

約数和(自身を除く): 189013929

約数列:

[1, 3, 9, 13, 39, 43, 61, 73, 117, 129, 169, 183, 219, 387, 507, 549, 559, 657, 793, 949, 1521, 1677, 2379, 2623, 2847, 3139, 4453, 5031, 7137, 7267, 7869, 8541, 9417, 10309, 12337, 13359, 21801, 23607, 28251, 30927, 34099, 37011, 40077, 40807, 57889, 65403, 92781, 102297, 111033, 122421, 173667, 191479, 306891, 367263, 443287, 521001, 530491, 574437, 752557, 1329861, 1591473, 1723311, 2257671, 2489227, 3989583, 4774419, 6773013, 7467681, 22403043, 32359951, 97079853, 291239559]

約数ペア:

[(1, 291239559), (3, 97079853), (9, 32359951), (13, 22403043), (39, 7467681), (43, 6773013), (61, 4774419), (73, 3989583), (117, 2489227), (129, 2257671), (169, 1723311), (183, 1591473), (219, 1329861), (387, 752557), (507, 574437), (549, 530491), (559, 521001), (657, 443287), (793, 367263), (949, 306891), (1521, 191479), (1677, 173667), (2379, 122421), (2623, 111033), (2847, 102297), (3139, 92781), (4453, 65403), (5031, 57889), (7137, 40807), (7267, 40077), (7869, 37011), (8541, 34099), (9417, 30927), (10309, 28251), (12337, 23607), (13359, 21801)]