21158844

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{761}}^1$

素因数の和:1106

約数の個数: 48

約数和(自身を含む): 56668416

約数和(自身を除く): 35509572

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 331, 662, 761, 993, 1324, 1522, 1986, 2283, 2317, 3044, 3972, 4566, 4634, 5327, 6951, 9132, 9268, 10654, 13902, 15981, 21308, 27804, 31962, 63924, 251891, 503782, 755673, 1007564, 1511346, 1763237, 3022692, 3526474, 5289711, 7052948, 10579422, 21158844]

約数ペア:

[(1, 21158844), (2, 10579422), (3, 7052948), (4, 5289711), (6, 3526474), (7, 3022692), (12, 1763237), (14, 1511346), (21, 1007564), (28, 755673), (42, 503782), (84, 251891), (331, 63924), (662, 31962), (761, 27804), (993, 21308), (1324, 15981), (1522, 13902), (1986, 10654), (2283, 9268), (2317, 9132), (3044, 6951), (3972, 5327), (4566, 4634)]