1958904857

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 2498169600

約数和(自身を除く): 539264743

約数列:

[1, 7, 13, 53, 91, 157, 169, 199, 371, 689, 1099, 1183, 1393, 2041, 2587, 4823, 8321, 8957, 10547, 14287, 18109, 26533, 31243, 33631, 58247, 62699, 73829, 108173, 137111, 185731, 218701, 235417, 406159, 757211, 959777, 1406249, 1655879, 1782443, 2843113, 5280067, 9843743, 11591153, 12477101, 21526427, 36960469, 150684989, 279843551, 1958904857]

約数ペア:

[(1, 1958904857), (7, 279843551), (13, 150684989), (53, 36960469), (91, 21526427), (157, 12477101), (169, 11591153), (199, 9843743), (371, 5280067), (689, 2843113), (1099, 1782443), (1183, 1655879), (1393, 1406249), (2041, 959777), (2587, 757211), (4823, 406159), (8321, 235417), (8957, 218701), (10547, 185731), (14287, 137111), (18109, 108173), (26533, 73829), (31243, 62699), (33631, 58247)]