21387096

素因数分解:

$2^3\times 3^2\times {\mathrm{139}}^1\times {\mathrm{2137}}^1$

素因数の和:2288

約数の個数: 48

約数和(自身を含む): 58367400

約数和(自身を除く): 36980304

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 139, 278, 417, 556, 834, 1112, 1251, 1668, 2137, 2502, 3336, 4274, 5004, 6411, 8548, 10008, 12822, 17096, 19233, 25644, 38466, 51288, 76932, 153864, 297043, 594086, 891129, 1188172, 1782258, 2376344, 2673387, 3564516, 5346774, 7129032, 10693548, 21387096]

約数ペア:

[(1, 21387096), (2, 10693548), (3, 7129032), (4, 5346774), (6, 3564516), (8, 2673387), (9, 2376344), (12, 1782258), (18, 1188172), (24, 891129), (36, 594086), (72, 297043), (139, 153864), (278, 76932), (417, 51288), (556, 38466), (834, 25644), (1112, 19233), (1251, 17096), (1668, 12822), (2137, 10008), (2502, 8548), (3336, 6411), (4274, 5004)]