21587748

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{373}}^1$

素因数の和:453

約数の個数: 96

約数和(自身を含む): 63334656

約数和(自身を除く): 41746908

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 53, 78, 84, 91, 106, 156, 159, 182, 212, 273, 318, 364, 371, 373, 546, 636, 689, 742, 746, 1092, 1113, 1119, 1378, 1484, 1492, 2067, 2226, 2238, 2611, 2756, 4134, 4452, 4476, 4823, 4849, 5222, 7833, 8268, 9646, 9698, 10444, 14469, 14547, 15666, 19292, 19396, 19769, 28938, 29094, 31332, 33943, 39538, 57876, 58188, 59307, 67886, 79076, 101829, 118614, 135772, 138383, 203658, 237228, 256997, 276766, 407316, 415149, 513994, 553532, 770991, 830298, 1027988, 1541982, 1660596, 1798979, 3083964, 3597958, 5396937, 7195916, 10793874, 21587748]

約数ペア:

[(1, 21587748), (2, 10793874), (3, 7195916), (4, 5396937), (6, 3597958), (7, 3083964), (12, 1798979), (13, 1660596), (14, 1541982), (21, 1027988), (26, 830298), (28, 770991), (39, 553532), (42, 513994), (52, 415149), (53, 407316), (78, 276766), (84, 256997), (91, 237228), (106, 203658), (156, 138383), (159, 135772), (182, 118614), (212, 101829), (273, 79076), (318, 67886), (364, 59307), (371, 58188), (373, 57876), (546, 39538), (636, 33943), (689, 31332), (742, 29094), (746, 28938), (1092, 19769), (1113, 19396), (1119, 19292), (1378, 15666), (1484, 14547), (1492, 14469), (2067, 10444), (2226, 9698), (2238, 9646), (2611, 8268), (2756, 7833), (4134, 5222), (4452, 4849), (4476, 4823)]