1291288131

素因数分解:

$3^2\times 7^2\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{547}}^1$

素因数の和:721

約数の個数: 72

約数和(自身を含む): 2236622544

約数和(自身を除く): 945334413

約数列:

[1, 3, 7, 9, 21, 49, 53, 63, 101, 147, 159, 303, 371, 441, 477, 547, 707, 909, 1113, 1641, 2121, 2597, 3339, 3829, 4923, 4949, 5353, 6363, 7791, 11487, 14847, 16059, 23373, 26803, 28991, 34461, 37471, 44541, 48177, 55247, 80409, 86973, 112413, 165741, 202937, 241227, 260919, 262297, 337239, 386729, 497223, 608811, 786891, 1160187, 1420559, 1826433, 2360673, 2707103, 2928091, 3480561, 4261677, 8121309, 8784273, 12785031, 20496637, 24363927, 26352819, 61489911, 143476459, 184469733, 430429377, 1291288131]

約数ペア:

[(1, 1291288131), (3, 430429377), (7, 184469733), (9, 143476459), (21, 61489911), (49, 26352819), (53, 24363927), (63, 20496637), (101, 12785031), (147, 8784273), (159, 8121309), (303, 4261677), (371, 3480561), (441, 2928091), (477, 2707103), (547, 2360673), (707, 1826433), (909, 1420559), (1113, 1160187), (1641, 786891), (2121, 608811), (2597, 497223), (3339, 386729), (3829, 337239), (4923, 262297), (4949, 260919), (5353, 241227), (6363, 202937), (7791, 165741), (11487, 112413), (14847, 86973), (16059, 80409), (23373, 55247), (26803, 48177), (28991, 44541), (34461, 37471)]