21570276

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19753}}^1$

素因数の和:19780

約数の個数: 48

約数和(自身を含む): 61948544

約数和(自身を除く): 40378268

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 156, 182, 273, 364, 546, 1092, 19753, 39506, 59259, 79012, 118518, 138271, 237036, 256789, 276542, 414813, 513578, 553084, 770367, 829626, 1027156, 1540734, 1659252, 1797523, 3081468, 3595046, 5392569, 7190092, 10785138, 21570276]

約数ペア:

[(1, 21570276), (2, 10785138), (3, 7190092), (4, 5392569), (6, 3595046), (7, 3081468), (12, 1797523), (13, 1659252), (14, 1540734), (21, 1027156), (26, 829626), (28, 770367), (39, 553084), (42, 513578), (52, 414813), (78, 276542), (84, 256789), (91, 237036), (156, 138271), (182, 118518), (273, 79012), (364, 59259), (546, 39506), (1092, 19753)]