19531890

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:173

約数の個数: 144

約数和(自身を含む): 61034688

約数和(自身を除く): 41502798

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 43, 45, 49, 63, 70, 86, 90, 98, 103, 105, 126, 129, 147, 206, 210, 215, 245, 258, 294, 301, 309, 315, 387, 430, 441, 490, 515, 602, 618, 630, 645, 721, 735, 774, 882, 903, 927, 1030, 1290, 1442, 1470, 1505, 1545, 1806, 1854, 1935, 2107, 2163, 2205, 2709, 3010, 3090, 3605, 3870, 4214, 4326, 4410, 4429, 4515, 4635, 5047, 5418, 6321, 6489, 7210, 8858, 9030, 9270, 10094, 10535, 10815, 12642, 12978, 13287, 13545, 15141, 18963, 21070, 21630, 22145, 25235, 26574, 27090, 30282, 31003, 31605, 32445, 37926, 39861, 44290, 45423, 50470, 62006, 63210, 64890, 66435, 75705, 79722, 90846, 93009, 94815, 132870, 151410, 155015, 186018, 189630, 199305, 217021, 227115, 279027, 310030, 398610, 434042, 454230, 465045, 558054, 651063, 930090, 1085105, 1302126, 1395135, 1953189, 2170210, 2790270, 3255315, 3906378, 6510630, 9765945, 19531890]

約数ペア:

[(1, 19531890), (2, 9765945), (3, 6510630), (5, 3906378), (6, 3255315), (7, 2790270), (9, 2170210), (10, 1953189), (14, 1395135), (15, 1302126), (18, 1085105), (21, 930090), (30, 651063), (35, 558054), (42, 465045), (43, 454230), (45, 434042), (49, 398610), (63, 310030), (70, 279027), (86, 227115), (90, 217021), (98, 199305), (103, 189630), (105, 186018), (126, 155015), (129, 151410), (147, 132870), (206, 94815), (210, 93009), (215, 90846), (245, 79722), (258, 75705), (294, 66435), (301, 64890), (309, 63210), (315, 62006), (387, 50470), (430, 45423), (441, 44290), (490, 39861), (515, 37926), (602, 32445), (618, 31605), (630, 31003), (645, 30282), (721, 27090), (735, 26574), (774, 25235), (882, 22145), (903, 21630), (927, 21070), (1030, 18963), (1290, 15141), (1442, 13545), (1470, 13287), (1505, 12978), (1545, 12642), (1806, 10815), (1854, 10535), (1935, 10094), (2107, 9270), (2163, 9030), (2205, 8858), (2709, 7210), (3010, 6489), (3090, 6321), (3605, 5418), (3870, 5047), (4214, 4635), (4326, 4515), (4410, 4429)]