21026100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{109}}^1\times {\mathrm{643}}^1$

素因数の和:769

約数の個数: 72

約数和(自身を含む): 61489120

約数和(自身を除く): 40463020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 109, 150, 218, 300, 327, 436, 545, 643, 654, 1090, 1286, 1308, 1635, 1929, 2180, 2572, 2725, 3215, 3270, 3858, 5450, 6430, 6540, 7716, 8175, 9645, 10900, 12860, 16075, 16350, 19290, 32150, 32700, 38580, 48225, 64300, 70087, 96450, 140174, 192900, 210261, 280348, 350435, 420522, 700870, 841044, 1051305, 1401740, 1752175, 2102610, 3504350, 4205220, 5256525, 7008700, 10513050, 21026100]

約数ペア:

[(1, 21026100), (2, 10513050), (3, 7008700), (4, 5256525), (5, 4205220), (6, 3504350), (10, 2102610), (12, 1752175), (15, 1401740), (20, 1051305), (25, 841044), (30, 700870), (50, 420522), (60, 350435), (75, 280348), (100, 210261), (109, 192900), (150, 140174), (218, 96450), (300, 70087), (327, 64300), (436, 48225), (545, 38580), (643, 32700), (654, 32150), (1090, 19290), (1286, 16350), (1308, 16075), (1635, 12860), (1929, 10900), (2180, 9645), (2572, 8175), (2725, 7716), (3215, 6540), (3270, 6430), (3858, 5450)]