18853695

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:373

約数の個数: 64

約数和(自身を含む): 38983680

約数和(自身を除く): 20129985

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 71, 105, 135, 189, 213, 281, 315, 355, 497, 639, 843, 945, 1065, 1405, 1491, 1917, 1967, 2485, 2529, 3195, 4215, 4473, 5901, 7455, 7587, 9585, 9835, 12645, 13419, 17703, 19951, 22365, 29505, 37935, 53109, 59853, 67095, 88515, 99755, 139657, 179559, 265545, 299265, 418971, 538677, 698285, 897795, 1256913, 2094855, 2693385, 3770739, 6284565, 18853695]

約数ペア:

[(1, 18853695), (3, 6284565), (5, 3770739), (7, 2693385), (9, 2094855), (15, 1256913), (21, 897795), (27, 698285), (35, 538677), (45, 418971), (63, 299265), (71, 265545), (105, 179559), (135, 139657), (189, 99755), (213, 88515), (281, 67095), (315, 59853), (355, 53109), (497, 37935), (639, 29505), (843, 22365), (945, 19951), (1065, 17703), (1405, 13419), (1491, 12645), (1917, 9835), (1967, 9585), (2485, 7587), (2529, 7455), (3195, 5901), (4215, 4473)]