206157651

素因数分解:

$3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{563}}^1$

素因数の和:680

約数の個数: 48

約数和(自身を含む): 333310464

約数和(自身を除く): 127152813

約数列:

[1, 3, 7, 21, 47, 49, 53, 141, 147, 159, 329, 371, 563, 987, 1113, 1689, 2303, 2491, 2597, 3941, 6909, 7473, 7791, 11823, 17437, 26461, 27587, 29839, 52311, 79383, 82761, 89517, 122059, 185227, 208873, 366177, 555681, 626619, 1296589, 1402433, 1462111, 3889767, 4207299, 4386333, 9817031, 29451093, 68719217, 206157651]

約数ペア:

[(1, 206157651), (3, 68719217), (7, 29451093), (21, 9817031), (47, 4386333), (49, 4207299), (53, 3889767), (141, 1462111), (147, 1402433), (159, 1296589), (329, 626619), (371, 555681), (563, 366177), (987, 208873), (1113, 185227), (1689, 122059), (2303, 89517), (2491, 82761), (2597, 79383), (3941, 52311), (6909, 29839), (7473, 27587), (7791, 26461), (11823, 17437)]