21409827

素因数分解:

$3^1\times {\mathrm{19}}^2\times {\mathrm{53}}^1\times {\mathrm{373}}^1$

素因数の和:467

約数の個数: 24

約数和(自身を含む): 30778704

約数和(自身を除く): 9368877

約数列:

[1, 3, 19, 53, 57, 159, 361, 373, 1007, 1083, 1119, 3021, 7087, 19133, 19769, 21261, 57399, 59307, 134653, 375611, 403959, 1126833, 7136609, 21409827]

約数ペア:

[(1, 21409827), (3, 7136609), (19, 1126833), (53, 403959), (57, 375611), (159, 134653), (361, 59307), (373, 57399), (1007, 21261), (1083, 19769), (1119, 19133), (3021, 7087)]