19620495

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:197

約数の個数: 64

約数和(自身を含む): 37324800

約数和(自身を除く): 17704305

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 71, 89, 115, 135, 207, 213, 267, 345, 355, 445, 621, 639, 801, 1035, 1065, 1335, 1633, 1917, 2047, 2403, 3105, 3195, 4005, 4899, 6141, 6319, 8165, 9585, 10235, 12015, 14697, 18423, 18957, 24495, 30705, 31595, 44091, 55269, 56871, 73485, 92115, 94785, 145337, 170613, 220455, 276345, 284355, 436011, 726685, 853065, 1308033, 2180055, 3924099, 6540165, 19620495]

約数ペア:

[(1, 19620495), (3, 6540165), (5, 3924099), (9, 2180055), (15, 1308033), (23, 853065), (27, 726685), (45, 436011), (69, 284355), (71, 276345), (89, 220455), (115, 170613), (135, 145337), (207, 94785), (213, 92115), (267, 73485), (345, 56871), (355, 55269), (445, 44091), (621, 31595), (639, 30705), (801, 24495), (1035, 18957), (1065, 18423), (1335, 14697), (1633, 12015), (1917, 10235), (2047, 9585), (2403, 8165), (3105, 6319), (3195, 6141), (4005, 4899)]