21553432

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{233}}^1\times {\mathrm{373}}^1$

素因数の和:643

約数の個数: 32

約数和(自身を含む): 42007680

約数和(自身を除く): 20454248

約数列:

[1, 2, 4, 8, 31, 62, 124, 233, 248, 373, 466, 746, 932, 1492, 1864, 2984, 7223, 11563, 14446, 23126, 28892, 46252, 57784, 86909, 92504, 173818, 347636, 695272, 2694179, 5388358, 10776716, 21553432]

約数ペア:

[(1, 21553432), (2, 10776716), (4, 5388358), (8, 2694179), (31, 695272), (62, 347636), (124, 173818), (233, 92504), (248, 86909), (373, 57784), (466, 46252), (746, 28892), (932, 23126), (1492, 14446), (1864, 11563), (2984, 7223)]