21120426

素因数分解:

$2^1\times 3^4\times {\mathrm{17}}^1\times {\mathrm{7669}}^1$

素因数の和:7700

約数の個数: 40

約数和(自身を含む): 50115780

約数和(自身を除く): 28995354

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 81, 102, 153, 162, 306, 459, 918, 1377, 2754, 7669, 15338, 23007, 46014, 69021, 130373, 138042, 207063, 260746, 391119, 414126, 621189, 782238, 1173357, 1242378, 2346714, 3520071, 7040142, 10560213, 21120426]

約数ペア:

[(1, 21120426), (2, 10560213), (3, 7040142), (6, 3520071), (9, 2346714), (17, 1242378), (18, 1173357), (27, 782238), (34, 621189), (51, 414126), (54, 391119), (81, 260746), (102, 207063), (153, 138042), (162, 130373), (306, 69021), (459, 46014), (918, 23007), (1377, 15338), (2754, 7669)]