21144976

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{479}}^1$

素因数の和:607

約数の個数: 40

約数和(自身を含む): 42854400

約数和(自身を除く): 21709424

約数列:

[1, 2, 4, 8, 16, 31, 62, 89, 124, 178, 248, 356, 479, 496, 712, 958, 1424, 1916, 2759, 3832, 5518, 7664, 11036, 14849, 22072, 29698, 42631, 44144, 59396, 85262, 118792, 170524, 237584, 341048, 682096, 1321561, 2643122, 5286244, 10572488, 21144976]

約数ペア:

[(1, 21144976), (2, 10572488), (4, 5286244), (8, 2643122), (16, 1321561), (31, 682096), (62, 341048), (89, 237584), (124, 170524), (178, 118792), (248, 85262), (356, 59396), (479, 44144), (496, 42631), (712, 29698), (958, 22072), (1424, 14849), (1916, 11036), (2759, 7664), (3832, 5518)]