31218999

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{359}}^1$

素因数の和:511

約数の個数: 32

約数和(自身を含む): 49351680

約数和(自身を除く): 18132681

約数列:

[1, 3, 7, 21, 41, 101, 123, 287, 303, 359, 707, 861, 1077, 2121, 2513, 4141, 7539, 12423, 14719, 28987, 36259, 44157, 86961, 103033, 108777, 253813, 309099, 761439, 1486619, 4459857, 10406333, 31218999]

約数ペア:

[(1, 31218999), (3, 10406333), (7, 4459857), (21, 1486619), (41, 761439), (101, 309099), (123, 253813), (287, 108777), (303, 103033), (359, 86961), (707, 44157), (861, 36259), (1077, 28987), (2121, 14719), (2513, 12423), (4141, 7539)]