18256861

素因数分解:

$7^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:170

約数の個数: 32

約数和(自身を含む): 23500800

約数和(自身を除く): 5243939

約数列:

[1, 7, 17, 31, 49, 101, 119, 217, 343, 527, 707, 833, 1519, 1717, 3131, 3689, 4949, 5831, 10633, 12019, 21917, 25823, 34643, 53227, 84133, 153419, 180761, 372589, 588931, 1073933, 2608123, 18256861]

約数ペア:

[(1, 18256861), (7, 2608123), (17, 1073933), (31, 588931), (49, 372589), (101, 180761), (119, 153419), (217, 84133), (343, 53227), (527, 34643), (707, 25823), (833, 21917), (1519, 12019), (1717, 10633), (3131, 5831), (3689, 4949)]