21217308

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{1103}}^1$

素因数の和:1346

約数の個数: 48

約数和(自身を含む): 56878080

約数和(自身を除く): 35660772

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 229, 458, 687, 916, 1103, 1374, 1603, 2206, 2748, 3206, 3309, 4412, 4809, 6412, 6618, 7721, 9618, 13236, 15442, 19236, 23163, 30884, 46326, 92652, 252587, 505174, 757761, 1010348, 1515522, 1768109, 3031044, 3536218, 5304327, 7072436, 10608654, 21217308]

約数ペア:

[(1, 21217308), (2, 10608654), (3, 7072436), (4, 5304327), (6, 3536218), (7, 3031044), (12, 1768109), (14, 1515522), (21, 1010348), (28, 757761), (42, 505174), (84, 252587), (229, 92652), (458, 46326), (687, 30884), (916, 23163), (1103, 19236), (1374, 15442), (1603, 13236), (2206, 9618), (2748, 7721), (3206, 6618), (3309, 6412), (4412, 4809)]