201991095

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1\times {\mathrm{331}}^1$

素因数の和:604

約数の個数: 48

約数和(自身を含む): 357986304

約数和(自身を除く): 155995209

約数列:

[1, 3, 5, 9, 15, 45, 71, 191, 213, 331, 355, 573, 639, 955, 993, 1065, 1655, 1719, 2865, 2979, 3195, 4965, 8595, 13561, 14895, 23501, 40683, 63221, 67805, 70503, 117505, 122049, 189663, 203415, 211509, 316105, 352515, 568989, 610245, 948315, 1057545, 2844945, 4488691, 13466073, 22443455, 40398219, 67330365, 201991095]

約数ペア:

[(1, 201991095), (3, 67330365), (5, 40398219), (9, 22443455), (15, 13466073), (45, 4488691), (71, 2844945), (191, 1057545), (213, 948315), (331, 610245), (355, 568989), (573, 352515), (639, 316105), (955, 211509), (993, 203415), (1065, 189663), (1655, 122049), (1719, 117505), (2865, 70503), (2979, 67805), (3195, 63221), (4965, 40683), (8595, 23501), (13561, 14895)]