21699160

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{11071}}^1$

素因数の和:11096

約数の個数: 48

約数和(自身を含む): 56799360

約数和(自身を除く): 35100200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 11071, 22142, 44284, 55355, 77497, 88568, 110710, 154994, 221420, 309988, 387485, 442840, 542479, 619976, 774970, 1084958, 1549940, 2169916, 2712395, 3099880, 4339832, 5424790, 10849580, 21699160]

約数ペア:

[(1, 21699160), (2, 10849580), (4, 5424790), (5, 4339832), (7, 3099880), (8, 2712395), (10, 2169916), (14, 1549940), (20, 1084958), (28, 774970), (35, 619976), (40, 542479), (49, 442840), (56, 387485), (70, 309988), (98, 221420), (140, 154994), (196, 110710), (245, 88568), (280, 77497), (392, 55355), (490, 44284), (980, 22142), (1960, 11071)]