21826812

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1319}}^1$

素因数の和:1530

約数の個数: 48

約数和(自身を含む): 58544640

約数和(自身を除く): 36717828

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 197, 394, 591, 788, 1182, 1319, 1379, 2364, 2638, 2758, 3957, 4137, 5276, 5516, 7914, 8274, 9233, 15828, 16548, 18466, 27699, 36932, 55398, 110796, 259843, 519686, 779529, 1039372, 1559058, 1818901, 3118116, 3637802, 5456703, 7275604, 10913406, 21826812]

約数ペア:

[(1, 21826812), (2, 10913406), (3, 7275604), (4, 5456703), (6, 3637802), (7, 3118116), (12, 1818901), (14, 1559058), (21, 1039372), (28, 779529), (42, 519686), (84, 259843), (197, 110796), (394, 55398), (591, 36932), (788, 27699), (1182, 18466), (1319, 16548), (1379, 15828), (2364, 9233), (2638, 8274), (2758, 7914), (3957, 5516), (4137, 5276)]