220123281

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{1889}}^1$

素因数の和:2109

約数の個数: 32

約数和(自身を含む): 348364800

約数和(自身を除く): 128241519

約数列:

[1, 3, 7, 21, 31, 93, 179, 217, 537, 651, 1253, 1889, 3759, 5549, 5667, 13223, 16647, 38843, 39669, 58559, 116529, 175677, 338131, 409913, 1014393, 1229739, 2366917, 7100751, 10482061, 31446183, 73374427, 220123281]

約数ペア:

[(1, 220123281), (3, 73374427), (7, 31446183), (21, 10482061), (31, 7100751), (93, 2366917), (179, 1229739), (217, 1014393), (537, 409913), (651, 338131), (1253, 175677), (1889, 116529), (3759, 58559), (5549, 39669), (5667, 38843), (13223, 16647)]