213873855

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{433}}^1$

素因数の和:620

約数の個数: 64

約数和(自身を含む): 393724800

約数和(自身を除く): 179850945

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 149, 195, 221, 255, 433, 447, 663, 745, 1105, 1299, 1937, 2165, 2235, 2533, 3315, 5629, 5811, 6495, 7361, 7599, 9685, 12665, 16887, 22083, 28145, 29055, 32929, 36805, 37995, 64517, 84435, 95693, 98787, 110415, 164645, 193551, 287079, 322585, 478465, 493935, 838721, 967755, 1096789, 1435395, 2516163, 3290367, 4193605, 5483945, 12580815, 14258257, 16451835, 42774771, 71291285, 213873855]

約数ペア:

[(1, 213873855), (3, 71291285), (5, 42774771), (13, 16451835), (15, 14258257), (17, 12580815), (39, 5483945), (51, 4193605), (65, 3290367), (85, 2516163), (149, 1435395), (195, 1096789), (221, 967755), (255, 838721), (433, 493935), (447, 478465), (663, 322585), (745, 287079), (1105, 193551), (1299, 164645), (1937, 110415), (2165, 98787), (2235, 95693), (2533, 84435), (3315, 64517), (5629, 37995), (5811, 36805), (6495, 32929), (7361, 29055), (7599, 28145), (9685, 22083), (12665, 16887)]