21659800

素因数分解:

$2^3\times 5^2\times {\mathrm{37}}^1\times {\mathrm{2927}}^1$

素因数の和:2980

約数の個数: 48

約数和(自身を含む): 51737760

約数和(自身を除く): 30077960

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 37, 40, 50, 74, 100, 148, 185, 200, 296, 370, 740, 925, 1480, 1850, 2927, 3700, 5854, 7400, 11708, 14635, 23416, 29270, 58540, 73175, 108299, 117080, 146350, 216598, 292700, 433196, 541495, 585400, 866392, 1082990, 2165980, 2707475, 4331960, 5414950, 10829900, 21659800]

約数ペア:

[(1, 21659800), (2, 10829900), (4, 5414950), (5, 4331960), (8, 2707475), (10, 2165980), (20, 1082990), (25, 866392), (37, 585400), (40, 541495), (50, 433196), (74, 292700), (100, 216598), (148, 146350), (185, 117080), (200, 108299), (296, 73175), (370, 58540), (740, 29270), (925, 23416), (1480, 14635), (1850, 11708), (2927, 7400), (3700, 5854)]