21115800

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{11731}}^1$

素因数の和:11753

約数の個数: 72

約数和(自身を含む): 70919940

約数和(自身を除く): 49804140

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 72, 75, 90, 100, 120, 150, 180, 200, 225, 300, 360, 450, 600, 900, 1800, 11731, 23462, 35193, 46924, 58655, 70386, 93848, 105579, 117310, 140772, 175965, 211158, 234620, 281544, 293275, 351930, 422316, 469240, 527895, 586550, 703860, 844632, 879825, 1055790, 1173100, 1407720, 1759650, 2111580, 2346200, 2639475, 3519300, 4223160, 5278950, 7038600, 10557900, 21115800]

約数ペア:

[(1, 21115800), (2, 10557900), (3, 7038600), (4, 5278950), (5, 4223160), (6, 3519300), (8, 2639475), (9, 2346200), (10, 2111580), (12, 1759650), (15, 1407720), (18, 1173100), (20, 1055790), (24, 879825), (25, 844632), (30, 703860), (36, 586550), (40, 527895), (45, 469240), (50, 422316), (60, 351930), (72, 293275), (75, 281544), (90, 234620), (100, 211158), (120, 175965), (150, 140772), (180, 117310), (200, 105579), (225, 93848), (300, 70386), (360, 58655), (450, 46924), (600, 35193), (900, 23462), (1800, 11731)]