81997201

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{349}}^1$

素因数の和:457

約数の個数: 32

約数和(自身を含む): 101606400

約数和(自身を除く): 19609199

約数列:

[1, 11, 13, 31, 53, 143, 341, 349, 403, 583, 689, 1643, 3839, 4433, 4537, 7579, 10819, 18073, 18497, 21359, 49907, 119009, 140647, 203467, 234949, 240461, 573407, 1547117, 2645071, 6307477, 7454291, 81997201]

約数ペア:

[(1, 81997201), (11, 7454291), (13, 6307477), (31, 2645071), (53, 1547117), (143, 573407), (341, 240461), (349, 234949), (403, 203467), (583, 140647), (689, 119009), (1643, 49907), (3839, 21359), (4433, 18497), (4537, 18073), (7579, 10819)]