28491138

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{389}}^1$

素因数の和:723

約数の個数: 48

約数和(自身を含む): 66863160

約数和(自身を除く): 38372022

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 313, 389, 626, 778, 939, 1167, 1878, 2334, 2817, 3501, 4069, 5057, 5634, 7002, 8138, 10114, 12207, 15171, 24414, 30342, 36621, 45513, 73242, 91026, 121757, 243514, 365271, 730542, 1095813, 1582841, 2191626, 3165682, 4748523, 9497046, 14245569, 28491138]

約数ペア:

[(1, 28491138), (2, 14245569), (3, 9497046), (6, 4748523), (9, 3165682), (13, 2191626), (18, 1582841), (26, 1095813), (39, 730542), (78, 365271), (117, 243514), (234, 121757), (313, 91026), (389, 73242), (626, 45513), (778, 36621), (939, 30342), (1167, 24414), (1878, 15171), (2334, 12207), (2817, 10114), (3501, 8138), (4069, 7002), (5057, 5634)]