28456827

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1009}}^1$

素因数の和:1115

約数の個数: 32

約数和(自身を含む): 46540800

約数和(自身を除く): 18083973

約数列:

[1, 3, 7, 17, 21, 51, 79, 119, 237, 357, 553, 1009, 1343, 1659, 3027, 4029, 7063, 9401, 17153, 21189, 28203, 51459, 79711, 120071, 239133, 360213, 557977, 1355087, 1673931, 4065261, 9485609, 28456827]

約数ペア:

[(1, 28456827), (3, 9485609), (7, 4065261), (17, 1673931), (21, 1355087), (51, 557977), (79, 360213), (119, 239133), (237, 120071), (357, 79711), (553, 51459), (1009, 28203), (1343, 21189), (1659, 17153), (3027, 9401), (4029, 7063)]