221215216

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{353}}^1\times {\mathrm{739}}^1$

素因数の和:1153

約数の個数: 40

約数和(自身を含む): 438521040

約数和(自身を除く): 217305824

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 353, 424, 706, 739, 848, 1412, 1478, 2824, 2956, 5648, 5912, 11824, 18709, 37418, 39167, 74836, 78334, 149672, 156668, 260867, 299344, 313336, 521734, 626672, 1043468, 2086936, 4173872, 13825951, 27651902, 55303804, 110607608, 221215216]

約数ペア:

[(1, 221215216), (2, 110607608), (4, 55303804), (8, 27651902), (16, 13825951), (53, 4173872), (106, 2086936), (212, 1043468), (353, 626672), (424, 521734), (706, 313336), (739, 299344), (848, 260867), (1412, 156668), (1478, 149672), (2824, 78334), (2956, 74836), (5648, 39167), (5912, 37418), (11824, 18709)]