20945685

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{179}}^1\times {\mathrm{269}}^1$

素因数の和:485

約数の個数: 32

約数和(自身を含む): 34992000

約数和(自身を除く): 14046315

約数列:

[1, 3, 5, 15, 29, 87, 145, 179, 269, 435, 537, 807, 895, 1345, 2685, 4035, 5191, 7801, 15573, 23403, 25955, 39005, 48151, 77865, 117015, 144453, 240755, 722265, 1396379, 4189137, 6981895, 20945685]

約数ペア:

[(1, 20945685), (3, 6981895), (5, 4189137), (15, 1396379), (29, 722265), (87, 240755), (145, 144453), (179, 117015), (269, 77865), (435, 48151), (537, 39005), (807, 25955), (895, 23403), (1345, 15573), (2685, 7801), (4035, 5191)]