28306629

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 46929792

約数和(自身を除く): 18623163

約数列:

[1, 3, 9, 13, 23, 39, 67, 69, 117, 157, 201, 207, 299, 471, 603, 871, 897, 1413, 1541, 2041, 2613, 2691, 3611, 4623, 6123, 7839, 10519, 10833, 13869, 18369, 20033, 31557, 32499, 46943, 60099, 94671, 136747, 140829, 180297, 241937, 410241, 422487, 725811, 1230723, 2177433, 3145181, 9435543, 28306629]

約数ペア:

[(1, 28306629), (3, 9435543), (9, 3145181), (13, 2177433), (23, 1230723), (39, 725811), (67, 422487), (69, 410241), (117, 241937), (157, 180297), (201, 140829), (207, 136747), (299, 94671), (471, 60099), (603, 46943), (871, 32499), (897, 31557), (1413, 20033), (1541, 18369), (2041, 13869), (2613, 10833), (2691, 10519), (3611, 7839), (4623, 6123)]