21881340

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1039}}^1$

素因数の和:1073

約数の個数: 120

約数和(自身を含む): 73993920

約数和(自身を除く): 52112580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 81, 90, 108, 117, 130, 135, 156, 162, 180, 195, 234, 260, 270, 324, 351, 390, 405, 468, 540, 585, 702, 780, 810, 1039, 1053, 1170, 1404, 1620, 1755, 2078, 2106, 2340, 3117, 3510, 4156, 4212, 5195, 5265, 6234, 7020, 9351, 10390, 10530, 12468, 13507, 15585, 18702, 20780, 21060, 27014, 28053, 31170, 37404, 40521, 46755, 54028, 56106, 62340, 67535, 81042, 84159, 93510, 112212, 121563, 135070, 140265, 162084, 168318, 187020, 202605, 243126, 270140, 280530, 336636, 364689, 405210, 420795, 486252, 561060, 607815, 729378, 810420, 841590, 1094067, 1215630, 1458756, 1683180, 1823445, 2188134, 2431260, 3646890, 4376268, 5470335, 7293780, 10940670, 21881340]

約数ペア:

[(1, 21881340), (2, 10940670), (3, 7293780), (4, 5470335), (5, 4376268), (6, 3646890), (9, 2431260), (10, 2188134), (12, 1823445), (13, 1683180), (15, 1458756), (18, 1215630), (20, 1094067), (26, 841590), (27, 810420), (30, 729378), (36, 607815), (39, 561060), (45, 486252), (52, 420795), (54, 405210), (60, 364689), (65, 336636), (78, 280530), (81, 270140), (90, 243126), (108, 202605), (117, 187020), (130, 168318), (135, 162084), (156, 140265), (162, 135070), (180, 121563), (195, 112212), (234, 93510), (260, 84159), (270, 81042), (324, 67535), (351, 62340), (390, 56106), (405, 54028), (468, 46755), (540, 40521), (585, 37404), (702, 31170), (780, 28053), (810, 27014), (1039, 21060), (1053, 20780), (1170, 18702), (1404, 15585), (1620, 13507), (1755, 12468), (2078, 10530), (2106, 10390), (2340, 9351), (3117, 7020), (3510, 6234), (4156, 5265), (4212, 5195)]