399782021

素因数分解:

${\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{421}}^1$

素因数の和:557

約数の個数: 32

約数和(自身を含む): 459406080

約数和(自身を除く): 59624059

約数列:

[1, 19, 23, 41, 53, 421, 437, 779, 943, 1007, 1219, 2173, 7999, 9683, 17261, 17917, 22313, 23161, 41287, 49979, 183977, 327959, 397003, 423947, 513199, 914833, 949601, 7543057, 9750781, 17381827, 21041159, 399782021]

約数ペア:

[(1, 399782021), (19, 21041159), (23, 17381827), (41, 9750781), (53, 7543057), (421, 949601), (437, 914833), (779, 513199), (943, 423947), (1007, 397003), (1219, 327959), (2173, 183977), (7999, 49979), (9683, 41287), (17261, 23161), (17917, 22313)]