21000901242

素因数分解:

$2^1\times 3^1\times {\mathrm{47}}^1\times {\mathrm{509}}^1\times {\mathrm{146309}}^1$

素因数の和:146870

約数の個数: 32

約数和(自身を含む): 42980025600

約数和(自身を除く): 21979124358

約数列:

[1, 2, 3, 6, 47, 94, 141, 282, 509, 1018, 1527, 3054, 23923, 47846, 71769, 143538, 146309, 292618, 438927, 877854, 6876523, 13753046, 20629569, 41259138, 74471281, 148942562, 223413843, 446827686, 3500150207, 7000300414, 10500450621, 21000901242]

約数ペア:

[(1, 21000901242), (2, 10500450621), (3, 7000300414), (6, 3500150207), (47, 446827686), (94, 223413843), (141, 148942562), (282, 74471281), (509, 41259138), (1018, 20629569), (1527, 13753046), (3054, 6876523), (23923, 877854), (47846, 438927), (71769, 292618), (143538, 146309)]