207965409

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{263}}^1$

素因数の和:505

約数の個数: 32

約数和(自身を含む): 294624000

約数和(自身を除く): 86658591

約数列:

[1, 3, 29, 61, 87, 149, 183, 263, 447, 789, 1769, 4321, 5307, 7627, 9089, 12963, 16043, 22881, 27267, 39187, 48129, 117561, 263581, 465247, 790743, 1136423, 1395741, 2390407, 3409269, 7171221, 69321803, 207965409]

約数ペア:

[(1, 207965409), (3, 69321803), (29, 7171221), (61, 3409269), (87, 2390407), (149, 1395741), (183, 1136423), (263, 790743), (447, 465247), (789, 263581), (1769, 117561), (4321, 48129), (5307, 39187), (7627, 27267), (9089, 22881), (12963, 16043)]