21891410

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{983}}^1$

素因数の和:1138

約数の個数: 32

約数和(自身を含む): 42083712

約数和(自身を除く): 20192302

約数列:

[1, 2, 5, 10, 17, 34, 85, 131, 170, 262, 655, 983, 1310, 1966, 2227, 4454, 4915, 9830, 11135, 16711, 22270, 33422, 83555, 128773, 167110, 257546, 643865, 1287730, 2189141, 4378282, 10945705, 21891410]

約数ペア:

[(1, 21891410), (2, 10945705), (5, 4378282), (10, 2189141), (17, 1287730), (34, 643865), (85, 257546), (131, 167110), (170, 128773), (262, 83555), (655, 33422), (983, 22270), (1310, 16711), (1966, 11135), (2227, 9830), (4454, 4915)]