21378924

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{28279}}^1$

素因数の和:28299

約数の個数: 48

約数和(自身を含む): 63347200

約数和(自身を除く): 41968276

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756, 28279, 56558, 84837, 113116, 169674, 197953, 254511, 339348, 395906, 509022, 593859, 763533, 791812, 1018044, 1187718, 1527066, 1781577, 2375436, 3054132, 3563154, 5344731, 7126308, 10689462, 21378924]

約数ペア:

[(1, 21378924), (2, 10689462), (3, 7126308), (4, 5344731), (6, 3563154), (7, 3054132), (9, 2375436), (12, 1781577), (14, 1527066), (18, 1187718), (21, 1018044), (27, 791812), (28, 763533), (36, 593859), (42, 509022), (54, 395906), (63, 339348), (84, 254511), (108, 197953), (126, 169674), (189, 113116), (252, 84837), (378, 56558), (756, 28279)]