28917945

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{431}}^1$

素因数の和:523

約数の個数: 64

約数和(自身を含む): 59719680

約数和(自身を除く): 30801735

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 71, 105, 135, 189, 213, 315, 355, 431, 497, 639, 945, 1065, 1293, 1491, 1917, 2155, 2485, 3017, 3195, 3879, 4473, 6465, 7455, 9051, 9585, 11637, 13419, 15085, 19395, 22365, 27153, 30601, 45255, 58185, 67095, 81459, 91803, 135765, 153005, 214207, 275409, 407295, 459015, 642621, 826227, 1071035, 1377045, 1927863, 3213105, 4131135, 5783589, 9639315, 28917945]

約数ペア:

[(1, 28917945), (3, 9639315), (5, 5783589), (7, 4131135), (9, 3213105), (15, 1927863), (21, 1377045), (27, 1071035), (35, 826227), (45, 642621), (63, 459015), (71, 407295), (105, 275409), (135, 214207), (189, 153005), (213, 135765), (315, 91803), (355, 81459), (431, 67095), (497, 58185), (639, 45255), (945, 30601), (1065, 27153), (1293, 22365), (1491, 19395), (1917, 15085), (2155, 13419), (2485, 11637), (3017, 9585), (3195, 9051), (3879, 7455), (4473, 6465)]