221796183

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^2\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 355516928

約数和(自身を除く): 133720745

約数列:

[1, 3, 7, 21, 41, 61, 103, 123, 183, 287, 309, 427, 721, 861, 1281, 1681, 2163, 2501, 4223, 5043, 6283, 7503, 11767, 12669, 17507, 18849, 29561, 35301, 43981, 52521, 88683, 102541, 131943, 173143, 257603, 307623, 519429, 717787, 772809, 1212001, 1803221, 2153361, 3636003, 5409663, 10561723, 31685169, 73932061, 221796183]

約数ペア:

[(1, 221796183), (3, 73932061), (7, 31685169), (21, 10561723), (41, 5409663), (61, 3636003), (103, 2153361), (123, 1803221), (183, 1212001), (287, 772809), (309, 717787), (427, 519429), (721, 307623), (861, 257603), (1281, 173143), (1681, 131943), (2163, 102541), (2501, 88683), (4223, 52521), (5043, 43981), (6283, 35301), (7503, 29561), (11767, 18849), (12669, 17507)]