21587200

素因数分解:

$2^8\times 5^2\times {\mathrm{3373}}^1$

素因数の和:3399

約数の個数: 54

約数和(自身を含む): 53447534

約数和(自身を除く): 31860334

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 640, 800, 1280, 1600, 3200, 3373, 6400, 6746, 13492, 16865, 26984, 33730, 53968, 67460, 84325, 107936, 134920, 168650, 215872, 269840, 337300, 431744, 539680, 674600, 863488, 1079360, 1349200, 2158720, 2698400, 4317440, 5396800, 10793600, 21587200]

約数ペア:

[(1, 21587200), (2, 10793600), (4, 5396800), (5, 4317440), (8, 2698400), (10, 2158720), (16, 1349200), (20, 1079360), (25, 863488), (32, 674600), (40, 539680), (50, 431744), (64, 337300), (80, 269840), (100, 215872), (128, 168650), (160, 134920), (200, 107936), (256, 84325), (320, 67460), (400, 53968), (640, 33730), (800, 26984), (1280, 16865), (1600, 13492), (3200, 6746), (3373, 6400)]