21547800

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{11971}}^1$

素因数の和:11993

約数の個数: 72

約数和(自身を含む): 72370740

約数和(自身を除く): 50822940

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, 11971, 23942, 35913, 47884, 59855, 71826, 95768, 107739, 119710, 143652, 179565, 215478, 239420, 287304, 299275, 359130, 430956, 478840, 538695, 598550, 718260, 861912, 897825, 1077390, 1197100, 1436520, 1795650, 2154780, 2394200, 2693475, 3591300, 4309560, 5386950, 7182600, 10773900, 21547800]

約数ペア:

[(1, 21547800), (2, 10773900), (3, 7182600), (4, 5386950), (5, 4309560), (6, 3591300), (8, 2693475), (9, 2394200), (10, 2154780), (12, 1795650), (15, 1436520), (18, 1197100), (20, 1077390), (24, 897825), (25, 861912), (30, 718260), (36, 598550), (40, 538695), (45, 478840), (50, 430956), (60, 359130), (72, 299275), (75, 287304), (90, 239420), (100, 215478), (120, 179565), (150, 143652), (180, 119710), (200, 107739), (225, 95768), (300, 71826), (360, 59855), (450, 47884), (600, 35913), (900, 23942), (1800, 11971)]