81521265

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{16519}}^1$

素因数の和:16581

約数の個数: 32

約数和(自身を含む): 152248320

約数和(自身を除く): 70727055

約数列:

[1, 3, 5, 7, 15, 21, 35, 47, 105, 141, 235, 329, 705, 987, 1645, 4935, 16519, 49557, 82595, 115633, 247785, 346899, 578165, 776393, 1734495, 2329179, 3881965, 5434751, 11645895, 16304253, 27173755, 81521265]

約数ペア:

[(1, 81521265), (3, 27173755), (5, 16304253), (7, 11645895), (15, 5434751), (21, 3881965), (35, 2329179), (47, 1734495), (105, 776393), (141, 578165), (235, 346899), (329, 247785), (705, 115633), (987, 82595), (1645, 49557), (4935, 16519)]