21237612

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{641}}^1$

素因数の和:910

約数の個数: 48

約数和(自身を含む): 54359424

約数和(自身を除く): 33121812

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 251, 502, 641, 753, 1004, 1282, 1506, 1923, 2564, 2761, 3012, 3846, 5522, 7051, 7692, 8283, 11044, 14102, 16566, 21153, 28204, 33132, 42306, 84612, 160891, 321782, 482673, 643564, 965346, 1769801, 1930692, 3539602, 5309403, 7079204, 10618806, 21237612]

約数ペア:

[(1, 21237612), (2, 10618806), (3, 7079204), (4, 5309403), (6, 3539602), (11, 1930692), (12, 1769801), (22, 965346), (33, 643564), (44, 482673), (66, 321782), (132, 160891), (251, 84612), (502, 42306), (641, 33132), (753, 28204), (1004, 21153), (1282, 16566), (1506, 14102), (1923, 11044), (2564, 8283), (2761, 7692), (3012, 7051), (3846, 5522)]