21654752

素因数分解:

$2^5\times 7^1\times {\mathrm{277}}^1\times {\mathrm{349}}^1$

素因数の和:643

約数の個数: 48

約数和(自身を含む): 49039200

約数和(自身を除く): 27384448

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 277, 349, 554, 698, 1108, 1396, 1939, 2216, 2443, 2792, 3878, 4432, 4886, 5584, 7756, 8864, 9772, 11168, 15512, 19544, 31024, 39088, 62048, 78176, 96673, 193346, 386692, 676711, 773384, 1353422, 1546768, 2706844, 3093536, 5413688, 10827376, 21654752]

約数ペア:

[(1, 21654752), (2, 10827376), (4, 5413688), (7, 3093536), (8, 2706844), (14, 1546768), (16, 1353422), (28, 773384), (32, 676711), (56, 386692), (112, 193346), (224, 96673), (277, 78176), (349, 62048), (554, 39088), (698, 31024), (1108, 19544), (1396, 15512), (1939, 11168), (2216, 9772), (2443, 8864), (2792, 7756), (3878, 5584), (4432, 4886)]