18890872

素因数分解:

$2^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{337}}^1$

素因数の和:381

約数の個数: 96

約数和(自身を含む): 48550320

約数和(自身を除く): 29659448

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 22, 26, 28, 44, 49, 52, 56, 77, 88, 91, 98, 104, 143, 154, 182, 196, 286, 308, 337, 364, 392, 539, 572, 616, 637, 674, 728, 1001, 1078, 1144, 1274, 1348, 2002, 2156, 2359, 2548, 2696, 3707, 4004, 4312, 4381, 4718, 5096, 7007, 7414, 8008, 8762, 9436, 14014, 14828, 16513, 17524, 18872, 25949, 28028, 29656, 30667, 33026, 35048, 48191, 51898, 56056, 61334, 66052, 96382, 103796, 122668, 132104, 181643, 192764, 207592, 214669, 245336, 337337, 363286, 385528, 429338, 674674, 726572, 858676, 1349348, 1453144, 1717352, 2361359, 2698696, 4722718, 9445436, 18890872]

約数ペア:

[(1, 18890872), (2, 9445436), (4, 4722718), (7, 2698696), (8, 2361359), (11, 1717352), (13, 1453144), (14, 1349348), (22, 858676), (26, 726572), (28, 674674), (44, 429338), (49, 385528), (52, 363286), (56, 337337), (77, 245336), (88, 214669), (91, 207592), (98, 192764), (104, 181643), (143, 132104), (154, 122668), (182, 103796), (196, 96382), (286, 66052), (308, 61334), (337, 56056), (364, 51898), (392, 48191), (539, 35048), (572, 33026), (616, 30667), (637, 29656), (674, 28028), (728, 25949), (1001, 18872), (1078, 17524), (1144, 16513), (1274, 14828), (1348, 14014), (2002, 9436), (2156, 8762), (2359, 8008), (2548, 7414), (2696, 7007), (3707, 5096), (4004, 4718), (4312, 4381)]