20957566

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{509}}^1$

素因数の和:708

約数の個数: 32

約数和(自身を含む): 38335680

約数和(自身を除く): 17378114

約数列:

[1, 2, 7, 14, 17, 34, 119, 173, 238, 346, 509, 1018, 1211, 2422, 2941, 3563, 5882, 7126, 8653, 17306, 20587, 41174, 60571, 88057, 121142, 176114, 616399, 1232798, 1496969, 2993938, 10478783, 20957566]

約数ペア:

[(1, 20957566), (2, 10478783), (7, 2993938), (14, 1496969), (17, 1232798), (34, 616399), (119, 176114), (173, 121142), (238, 88057), (346, 60571), (509, 41174), (1018, 20587), (1211, 17306), (2422, 8653), (2941, 7126), (3563, 5882)]