28898181

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{167}}^1$

素因数の和:235

約数の個数: 64

約数和(自身を含む): 50803200

約数和(自身を除く): 21905019

約数列:

[1, 3, 9, 13, 17, 27, 29, 39, 51, 87, 117, 153, 167, 221, 261, 351, 377, 459, 493, 501, 663, 783, 1131, 1479, 1503, 1989, 2171, 2839, 3393, 4437, 4509, 4843, 5967, 6409, 6513, 8517, 10179, 13311, 14529, 19227, 19539, 25551, 36907, 43587, 57681, 58617, 62959, 76653, 82331, 110721, 130761, 173043, 188877, 246993, 332163, 566631, 740979, 996489, 1070303, 1699893, 2222937, 3210909, 9632727, 28898181]

約数ペア:

[(1, 28898181), (3, 9632727), (9, 3210909), (13, 2222937), (17, 1699893), (27, 1070303), (29, 996489), (39, 740979), (51, 566631), (87, 332163), (117, 246993), (153, 188877), (167, 173043), (221, 130761), (261, 110721), (351, 82331), (377, 76653), (459, 62959), (493, 58617), (501, 57681), (663, 43587), (783, 36907), (1131, 25551), (1479, 19539), (1503, 19227), (1989, 14529), (2171, 13311), (2839, 10179), (3393, 8517), (4437, 6513), (4509, 6409), (4843, 5967)]