21074500

素因数分解:

$2^2\times 5^3\times {\mathrm{113}}^1\times {\mathrm{373}}^1$

素因数の和:505

約数の個数: 48

約数和(自身を含む): 46558512

約数和(自身を除く): 25484012

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 113, 125, 226, 250, 373, 452, 500, 565, 746, 1130, 1492, 1865, 2260, 2825, 3730, 5650, 7460, 9325, 11300, 14125, 18650, 28250, 37300, 42149, 46625, 56500, 84298, 93250, 168596, 186500, 210745, 421490, 842980, 1053725, 2107450, 4214900, 5268625, 10537250, 21074500]

約数ペア:

[(1, 21074500), (2, 10537250), (4, 5268625), (5, 4214900), (10, 2107450), (20, 1053725), (25, 842980), (50, 421490), (100, 210745), (113, 186500), (125, 168596), (226, 93250), (250, 84298), (373, 56500), (452, 46625), (500, 42149), (565, 37300), (746, 28250), (1130, 18650), (1492, 14125), (1865, 11300), (2260, 9325), (2825, 7460), (3730, 5650)]