21383320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{76369}}^1$

素因数の和:76387

約数の個数: 32

約数和(自身を含む): 54986400

約数和(自身を除く): 33603080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 76369, 152738, 305476, 381845, 534583, 610952, 763690, 1069166, 1527380, 2138332, 2672915, 3054760, 4276664, 5345830, 10691660, 21383320]

約数ペア:

[(1, 21383320), (2, 10691660), (4, 5345830), (5, 4276664), (7, 3054760), (8, 2672915), (10, 2138332), (14, 1527380), (20, 1069166), (28, 763690), (35, 610952), (40, 534583), (56, 381845), (70, 305476), (140, 152738), (280, 76369)]