21000773378

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{167}}^1\times {\mathrm{3067}}^1$

素因数の和:3351

約数の個数: 64

約数和(自身を含む): 36368317440

約数和(自身を除く): 15367544062

約数列:

[1, 2, 13, 19, 26, 38, 83, 166, 167, 247, 334, 494, 1079, 1577, 2158, 2171, 3067, 3154, 3173, 4342, 6134, 6346, 13861, 20501, 27722, 39871, 41002, 41249, 58273, 79742, 82498, 116546, 180193, 254561, 263359, 360386, 509122, 512189, 526718, 757549, 1024378, 1515098, 3309293, 3423667, 4836659, 6618586, 6658457, 6847334, 9673318, 9731591, 13316914, 19463182, 42511687, 62876567, 85023374, 125753134, 126510683, 253021366, 552651931, 807722053, 1105303862, 1615444106, 10500386689, 21000773378]

約数ペア:

[(1, 21000773378), (2, 10500386689), (13, 1615444106), (19, 1105303862), (26, 807722053), (38, 552651931), (83, 253021366), (166, 126510683), (167, 125753134), (247, 85023374), (334, 62876567), (494, 42511687), (1079, 19463182), (1577, 13316914), (2158, 9731591), (2171, 9673318), (3067, 6847334), (3154, 6658457), (3173, 6618586), (4342, 4836659), (6134, 3423667), (6346, 3309293), (13861, 1515098), (20501, 1024378), (27722, 757549), (39871, 526718), (41002, 512189), (41249, 509122), (58273, 360386), (79742, 263359), (82498, 254561), (116546, 180193)]