219681

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{317}}^1$

素因数の和:341

約数の個数: 24

約数和(自身を含む): 396864

約数和(自身を除く): 177183

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 317, 693, 951, 2219, 2853, 3487, 6657, 10461, 19971, 24409, 31383, 73227, 219681]

約数ペア:

[(1, 219681), (3, 73227), (7, 31383), (9, 24409), (11, 19971), (21, 10461), (33, 6657), (63, 3487), (77, 2853), (99, 2219), (231, 951), (317, 693)]