21123360

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{14669}}^1$

素因数の和:14690

約数の個数: 72

約数和(自身を含む): 72088380

約数和(自身を除く): 50965020

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 14669, 29338, 44007, 58676, 73345, 88014, 117352, 132021, 146690, 176028, 220035, 234704, 264042, 293380, 352056, 440070, 469408, 528084, 586760, 660105, 704112, 880140, 1056168, 1173520, 1320210, 1408224, 1760280, 2112336, 2347040, 2640420, 3520560, 4224672, 5280840, 7041120, 10561680, 21123360]

約数ペア:

[(1, 21123360), (2, 10561680), (3, 7041120), (4, 5280840), (5, 4224672), (6, 3520560), (8, 2640420), (9, 2347040), (10, 2112336), (12, 1760280), (15, 1408224), (16, 1320210), (18, 1173520), (20, 1056168), (24, 880140), (30, 704112), (32, 660105), (36, 586760), (40, 528084), (45, 469408), (48, 440070), (60, 352056), (72, 293380), (80, 264042), (90, 234704), (96, 220035), (120, 176028), (144, 146690), (160, 132021), (180, 117352), (240, 88014), (288, 73345), (360, 58676), (480, 44007), (720, 29338), (1440, 14669)]