20681964

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{15527}}^1$

素因数の和:15574

約数の個数: 36

約数和(自身を含む): 53695824

約数和(自身を除く): 33013860

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 111, 148, 222, 333, 444, 666, 1332, 15527, 31054, 46581, 62108, 93162, 139743, 186324, 279486, 558972, 574499, 1148998, 1723497, 2297996, 3446994, 5170491, 6893988, 10340982, 20681964]

約数ペア:

[(1, 20681964), (2, 10340982), (3, 6893988), (4, 5170491), (6, 3446994), (9, 2297996), (12, 1723497), (18, 1148998), (36, 574499), (37, 558972), (74, 279486), (111, 186324), (148, 139743), (222, 93162), (333, 62108), (444, 46581), (666, 31054), (1332, 15527)]