221291072

素因数分解:

$2^6\times {\mathrm{43}}^1\times {\mathrm{191}}^1\times {\mathrm{421}}^1$

素因数の和:667

約数の個数: 56

約数和(自身を含む): 452762112

約数和(自身を除く): 231471040

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 172, 191, 344, 382, 421, 688, 764, 842, 1376, 1528, 1684, 2752, 3056, 3368, 6112, 6736, 8213, 12224, 13472, 16426, 18103, 26944, 32852, 36206, 65704, 72412, 80411, 131408, 144824, 160822, 262816, 289648, 321644, 525632, 579296, 643288, 1158592, 1286576, 2573152, 3457673, 5146304, 6915346, 13830692, 27661384, 55322768, 110645536, 221291072]

約数ペア:

[(1, 221291072), (2, 110645536), (4, 55322768), (8, 27661384), (16, 13830692), (32, 6915346), (43, 5146304), (64, 3457673), (86, 2573152), (172, 1286576), (191, 1158592), (344, 643288), (382, 579296), (421, 525632), (688, 321644), (764, 289648), (842, 262816), (1376, 160822), (1528, 144824), (1684, 131408), (2752, 80411), (3056, 72412), (3368, 65704), (6112, 36206), (6736, 32852), (8213, 26944), (12224, 18103), (13472, 16426)]