18716628

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{229}}^1$

素因数の和:389

約数の個数: 72

約数和(自身を含む): 51391200

約数和(自身を除く): 32674572

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 139, 147, 196, 229, 278, 294, 417, 458, 556, 588, 687, 834, 916, 973, 1374, 1603, 1668, 1946, 2748, 2919, 3206, 3892, 4809, 5838, 6412, 6811, 9618, 11221, 11676, 13622, 19236, 20433, 22442, 27244, 31831, 33663, 40866, 44884, 63662, 67326, 81732, 95493, 127324, 134652, 190986, 222817, 381972, 445634, 668451, 891268, 1336902, 1559719, 2673804, 3119438, 4679157, 6238876, 9358314, 18716628]

約数ペア:

[(1, 18716628), (2, 9358314), (3, 6238876), (4, 4679157), (6, 3119438), (7, 2673804), (12, 1559719), (14, 1336902), (21, 891268), (28, 668451), (42, 445634), (49, 381972), (84, 222817), (98, 190986), (139, 134652), (147, 127324), (196, 95493), (229, 81732), (278, 67326), (294, 63662), (417, 44884), (458, 40866), (556, 33663), (588, 31831), (687, 27244), (834, 22442), (916, 20433), (973, 19236), (1374, 13622), (1603, 11676), (1668, 11221), (1946, 9618), (2748, 6811), (2919, 6412), (3206, 5838), (3892, 4809)]