28654641

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{433}}^1$

素因数の和:507

約数の個数: 40

約数和(自身を含む): 46212320

約数和(自身を除く): 17557679

約数列:

[1, 3, 9, 19, 27, 43, 57, 81, 129, 171, 387, 433, 513, 817, 1161, 1299, 1539, 2451, 3483, 3897, 7353, 8227, 11691, 18619, 22059, 24681, 35073, 55857, 66177, 74043, 167571, 222129, 353761, 502713, 666387, 1061283, 1508139, 3183849, 9551547, 28654641]

約数ペア:

[(1, 28654641), (3, 9551547), (9, 3183849), (19, 1508139), (27, 1061283), (43, 666387), (57, 502713), (81, 353761), (129, 222129), (171, 167571), (387, 74043), (433, 66177), (513, 55857), (817, 35073), (1161, 24681), (1299, 22059), (1539, 18619), (2451, 11691), (3483, 8227), (3897, 7353)]