18872028

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:233

約数の個数: 120

約数和(自身を含む): 57812832

約数和(自身を除く): 38940804

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 53, 54, 63, 81, 84, 106, 108, 126, 157, 159, 162, 189, 212, 252, 314, 318, 324, 371, 378, 471, 477, 567, 628, 636, 742, 756, 942, 954, 1099, 1113, 1134, 1413, 1431, 1484, 1884, 1908, 2198, 2226, 2268, 2826, 2862, 3297, 3339, 4239, 4293, 4396, 4452, 5652, 5724, 6594, 6678, 8321, 8478, 8586, 9891, 10017, 12717, 13188, 13356, 16642, 16956, 17172, 19782, 20034, 24963, 25434, 29673, 30051, 33284, 39564, 40068, 49926, 50868, 58247, 59346, 60102, 74889, 89019, 99852, 116494, 118692, 120204, 149778, 174741, 178038, 224667, 232988, 299556, 349482, 356076, 449334, 524223, 674001, 698964, 898668, 1048446, 1348002, 1572669, 2096892, 2696004, 3145338, 4718007, 6290676, 9436014, 18872028]

約数ペア:

[(1, 18872028), (2, 9436014), (3, 6290676), (4, 4718007), (6, 3145338), (7, 2696004), (9, 2096892), (12, 1572669), (14, 1348002), (18, 1048446), (21, 898668), (27, 698964), (28, 674001), (36, 524223), (42, 449334), (53, 356076), (54, 349482), (63, 299556), (81, 232988), (84, 224667), (106, 178038), (108, 174741), (126, 149778), (157, 120204), (159, 118692), (162, 116494), (189, 99852), (212, 89019), (252, 74889), (314, 60102), (318, 59346), (324, 58247), (371, 50868), (378, 49926), (471, 40068), (477, 39564), (567, 33284), (628, 30051), (636, 29673), (742, 25434), (756, 24963), (942, 20034), (954, 19782), (1099, 17172), (1113, 16956), (1134, 16642), (1413, 13356), (1431, 13188), (1484, 12717), (1884, 10017), (1908, 9891), (2198, 8586), (2226, 8478), (2268, 8321), (2826, 6678), (2862, 6594), (3297, 5724), (3339, 5652), (4239, 4452), (4293, 4396)]