21116976

素因数分解:

$2^4\times 3^1\times {\mathrm{163}}^1\times {\mathrm{2699}}^1$

素因数の和:2873

約数の個数: 40

約数和(自身を含む): 54907200

約数和(自身を除く): 33790224

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 163, 326, 489, 652, 978, 1304, 1956, 2608, 2699, 3912, 5398, 7824, 8097, 10796, 16194, 21592, 32388, 43184, 64776, 129552, 439937, 879874, 1319811, 1759748, 2639622, 3519496, 5279244, 7038992, 10558488, 21116976]

約数ペア:

[(1, 21116976), (2, 10558488), (3, 7038992), (4, 5279244), (6, 3519496), (8, 2639622), (12, 1759748), (16, 1319811), (24, 879874), (48, 439937), (163, 129552), (326, 64776), (489, 43184), (652, 32388), (978, 21592), (1304, 16194), (1956, 10796), (2608, 8097), (2699, 7824), (3912, 5398)]