17807985

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:239

約数の個数: 64

約数和(自身を含む): 34809600

約数和(自身を除く): 17001615

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 73, 117, 135, 139, 195, 219, 351, 365, 417, 585, 657, 695, 949, 1095, 1251, 1755, 1807, 1971, 2085, 2847, 3285, 3753, 4745, 5421, 6255, 8541, 9035, 9855, 10147, 14235, 16263, 18765, 25623, 27105, 30441, 42705, 48789, 50735, 81315, 91323, 128115, 131911, 152205, 243945, 273969, 395733, 456615, 659555, 1187199, 1369845, 1978665, 3561597, 5935995, 17807985]

約数ペア:

[(1, 17807985), (3, 5935995), (5, 3561597), (9, 1978665), (13, 1369845), (15, 1187199), (27, 659555), (39, 456615), (45, 395733), (65, 273969), (73, 243945), (117, 152205), (135, 131911), (139, 128115), (195, 91323), (219, 81315), (351, 50735), (365, 48789), (417, 42705), (585, 30441), (657, 27105), (695, 25623), (949, 18765), (1095, 16263), (1251, 14235), (1755, 10147), (1807, 9855), (1971, 9035), (2085, 8541), (2847, 6255), (3285, 5421), (3753, 4745)]