17928316

素因数分解:

$2^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:179

約数の個数: 72

約数和(自身を含む): 39414816

約数和(自身を除く): 21486500

約数列:

[1, 2, 4, 7, 14, 23, 28, 41, 46, 49, 82, 92, 97, 98, 161, 164, 194, 196, 287, 322, 388, 574, 644, 679, 943, 1127, 1148, 1358, 1886, 2009, 2231, 2254, 2716, 3772, 3977, 4018, 4462, 4508, 4753, 6601, 7954, 8036, 8924, 9506, 13202, 15617, 15908, 19012, 26404, 27839, 31234, 46207, 55678, 62468, 91471, 92414, 109319, 111356, 182942, 184828, 194873, 218638, 365884, 389746, 437276, 640297, 779492, 1280594, 2561188, 4482079, 8964158, 17928316]

約数ペア:

[(1, 17928316), (2, 8964158), (4, 4482079), (7, 2561188), (14, 1280594), (23, 779492), (28, 640297), (41, 437276), (46, 389746), (49, 365884), (82, 218638), (92, 194873), (97, 184828), (98, 182942), (161, 111356), (164, 109319), (194, 92414), (196, 91471), (287, 62468), (322, 55678), (388, 46207), (574, 31234), (644, 27839), (679, 26404), (943, 19012), (1127, 15908), (1148, 15617), (1358, 13202), (1886, 9506), (2009, 8924), (2231, 8036), (2254, 7954), (2716, 6601), (3772, 4753), (3977, 4508), (4018, 4462)]