21817300

素因数分解:

$2^2\times 5^2\times {\mathrm{107}}^1\times {\mathrm{2039}}^1$

素因数の和:2160

約数の個数: 36

約数和(自身を含む): 47809440

約数和(自身を除く): 25992140

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 107, 214, 428, 535, 1070, 2039, 2140, 2675, 4078, 5350, 8156, 10195, 10700, 20390, 40780, 50975, 101950, 203900, 218173, 436346, 872692, 1090865, 2181730, 4363460, 5454325, 10908650, 21817300]

約数ペア:

[(1, 21817300), (2, 10908650), (4, 5454325), (5, 4363460), (10, 2181730), (20, 1090865), (25, 872692), (50, 436346), (100, 218173), (107, 203900), (214, 101950), (428, 50975), (535, 40780), (1070, 20390), (2039, 10700), (2140, 10195), (2675, 8156), (4078, 5350)]