19111264

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^2$

素因数の和:132

約数の個数: 72

約数和(自身を含む): 42933240

約数和(自身を除く): 23821976

約数列:

[1, 2, 4, 8, 16, 17, 19, 32, 34, 38, 43, 68, 76, 86, 136, 152, 172, 272, 304, 323, 344, 544, 608, 646, 688, 731, 817, 1292, 1376, 1462, 1634, 1849, 2584, 2924, 3268, 3698, 5168, 5848, 6536, 7396, 10336, 11696, 13072, 13889, 14792, 23392, 26144, 27778, 29584, 31433, 35131, 55556, 59168, 62866, 70262, 111112, 125732, 140524, 222224, 251464, 281048, 444448, 502928, 562096, 597227, 1005856, 1124192, 1194454, 2388908, 4777816, 9555632, 19111264]

約数ペア:

[(1, 19111264), (2, 9555632), (4, 4777816), (8, 2388908), (16, 1194454), (17, 1124192), (19, 1005856), (32, 597227), (34, 562096), (38, 502928), (43, 444448), (68, 281048), (76, 251464), (86, 222224), (136, 140524), (152, 125732), (172, 111112), (272, 70262), (304, 62866), (323, 59168), (344, 55556), (544, 35131), (608, 31433), (646, 29584), (688, 27778), (731, 26144), (817, 23392), (1292, 14792), (1376, 13889), (1462, 13072), (1634, 11696), (1849, 10336), (2584, 7396), (2924, 6536), (3268, 5848), (3698, 5168)]