21218904

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{42101}}^1$

素因数の和:42120

約数の個数: 48

約数和(自身を含む): 65679120

約数和(自身を除く): 44460216

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 252, 504, 42101, 84202, 126303, 168404, 252606, 294707, 336808, 378909, 505212, 589414, 757818, 884121, 1010424, 1178828, 1515636, 1768242, 2357656, 2652363, 3031272, 3536484, 5304726, 7072968, 10609452, 21218904]

約数ペア:

[(1, 21218904), (2, 10609452), (3, 7072968), (4, 5304726), (6, 3536484), (7, 3031272), (8, 2652363), (9, 2357656), (12, 1768242), (14, 1515636), (18, 1178828), (21, 1010424), (24, 884121), (28, 757818), (36, 589414), (42, 505212), (56, 378909), (63, 336808), (72, 294707), (84, 252606), (126, 168404), (168, 126303), (252, 84202), (504, 42101)]