21488040

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{8527}}^1$

素因数の和:8551

約数の個数: 96

約数和(自身を含む): 79822080

約数和(自身を除く): 58334040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 360, 420, 504, 630, 840, 1260, 2520, 8527, 17054, 25581, 34108, 42635, 51162, 59689, 68216, 76743, 85270, 102324, 119378, 127905, 153486, 170540, 179067, 204648, 238756, 255810, 298445, 306972, 341080, 358134, 383715, 477512, 511620, 537201, 596890, 613944, 716268, 767430, 895335, 1023240, 1074402, 1193780, 1432536, 1534860, 1790670, 2148804, 2387560, 2686005, 3069720, 3581340, 4297608, 5372010, 7162680, 10744020, 21488040]

約数ペア:

[(1, 21488040), (2, 10744020), (3, 7162680), (4, 5372010), (5, 4297608), (6, 3581340), (7, 3069720), (8, 2686005), (9, 2387560), (10, 2148804), (12, 1790670), (14, 1534860), (15, 1432536), (18, 1193780), (20, 1074402), (21, 1023240), (24, 895335), (28, 767430), (30, 716268), (35, 613944), (36, 596890), (40, 537201), (42, 511620), (45, 477512), (56, 383715), (60, 358134), (63, 341080), (70, 306972), (72, 298445), (84, 255810), (90, 238756), (105, 204648), (120, 179067), (126, 170540), (140, 153486), (168, 127905), (180, 119378), (210, 102324), (252, 85270), (280, 76743), (315, 68216), (360, 59689), (420, 51162), (504, 42635), (630, 34108), (840, 25581), (1260, 17054), (2520, 8527)]