1878231999

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{77977}}^1$

素因数の和:78055

約数の個数: 32

約数和(自身を含む): 3034279936

約数和(自身を除く): 1156047937

約数列:

[1, 3, 7, 21, 31, 37, 93, 111, 217, 259, 651, 777, 1147, 3441, 8029, 24087, 77977, 233931, 545839, 1637517, 2417287, 2885149, 7251861, 8655447, 16921009, 20196043, 50763027, 60588129, 89439619, 268318857, 626077333, 1878231999]

約数ペア:

[(1, 1878231999), (3, 626077333), (7, 268318857), (21, 89439619), (31, 60588129), (37, 50763027), (93, 20196043), (111, 16921009), (217, 8655447), (259, 7251861), (651, 2885149), (777, 2417287), (1147, 1637517), (3441, 545839), (8029, 233931), (24087, 77977)]