21236523

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{617}}^1$

素因数の和:787

約数の個数: 32

約数和(自身を含む): 35596800

約数和(自身を除く): 14360277

約数列:

[1, 3, 7, 11, 21, 33, 77, 149, 231, 447, 617, 1043, 1639, 1851, 3129, 4319, 4917, 6787, 11473, 12957, 20361, 34419, 47509, 91933, 142527, 275799, 643531, 1011263, 1930593, 3033789, 7078841, 21236523]

約数ペア:

[(1, 21236523), (3, 7078841), (7, 3033789), (11, 1930593), (21, 1011263), (33, 643531), (77, 275799), (149, 142527), (231, 91933), (447, 47509), (617, 34419), (1043, 20361), (1639, 12957), (1851, 11473), (3129, 6787), (4319, 4917)]