21719340

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1$

素因数の和:174

約数の個数: 144

約数和(自身を含む): 70630560

約数和(自身を除く): 48911220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 41, 45, 54, 60, 81, 82, 90, 108, 109, 123, 135, 162, 164, 180, 205, 218, 243, 246, 270, 324, 327, 369, 405, 410, 436, 486, 492, 540, 545, 615, 654, 738, 810, 820, 972, 981, 1090, 1107, 1215, 1230, 1308, 1476, 1620, 1635, 1845, 1962, 2180, 2214, 2430, 2460, 2943, 3270, 3321, 3690, 3924, 4428, 4469, 4860, 4905, 5535, 5886, 6540, 6642, 7380, 8829, 8938, 9810, 9963, 11070, 11772, 13284, 13407, 14715, 16605, 17658, 17876, 19620, 19926, 22140, 22345, 26487, 26814, 29430, 33210, 35316, 39852, 40221, 44145, 44690, 49815, 52974, 53628, 58860, 66420, 67035, 80442, 88290, 89380, 99630, 105948, 120663, 132435, 134070, 160884, 176580, 199260, 201105, 241326, 264870, 268140, 361989, 402210, 482652, 529740, 603315, 723978, 804420, 1085967, 1206630, 1447956, 1809945, 2171934, 2413260, 3619890, 4343868, 5429835, 7239780, 10859670, 21719340]

約数ペア:

[(1, 21719340), (2, 10859670), (3, 7239780), (4, 5429835), (5, 4343868), (6, 3619890), (9, 2413260), (10, 2171934), (12, 1809945), (15, 1447956), (18, 1206630), (20, 1085967), (27, 804420), (30, 723978), (36, 603315), (41, 529740), (45, 482652), (54, 402210), (60, 361989), (81, 268140), (82, 264870), (90, 241326), (108, 201105), (109, 199260), (123, 176580), (135, 160884), (162, 134070), (164, 132435), (180, 120663), (205, 105948), (218, 99630), (243, 89380), (246, 88290), (270, 80442), (324, 67035), (327, 66420), (369, 58860), (405, 53628), (410, 52974), (436, 49815), (486, 44690), (492, 44145), (540, 40221), (545, 39852), (615, 35316), (654, 33210), (738, 29430), (810, 26814), (820, 26487), (972, 22345), (981, 22140), (1090, 19926), (1107, 19620), (1215, 17876), (1230, 17658), (1308, 16605), (1476, 14715), (1620, 13407), (1635, 13284), (1845, 11772), (1962, 11070), (2180, 9963), (2214, 9810), (2430, 8938), (2460, 8829), (2943, 7380), (3270, 6642), (3321, 6540), (3690, 5886), (3924, 5535), (4428, 4905), (4469, 4860)]