21001431424

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{33601}}^1$

素因数の和:33891

約数の個数: 64

約数和(自身を含む): 44213511600

約数和(自身を除く): 23212080176

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 257, 304, 514, 608, 1028, 1216, 2056, 2432, 4112, 4883, 8224, 9766, 16448, 19532, 32896, 33601, 39064, 67202, 78128, 134404, 156256, 268808, 312512, 537616, 625024, 638419, 1075232, 1276838, 2150464, 2553676, 4300928, 5107352, 8635457, 10214704, 17270914, 20429408, 34541828, 40858816, 69083656, 81717632, 138167312, 164073683, 276334624, 328147366, 552669248, 656294732, 1105338496, 1312589464, 2625178928, 5250357856, 10500715712, 21001431424]

約数ペア:

[(1, 21001431424), (2, 10500715712), (4, 5250357856), (8, 2625178928), (16, 1312589464), (19, 1105338496), (32, 656294732), (38, 552669248), (64, 328147366), (76, 276334624), (128, 164073683), (152, 138167312), (257, 81717632), (304, 69083656), (514, 40858816), (608, 34541828), (1028, 20429408), (1216, 17270914), (2056, 10214704), (2432, 8635457), (4112, 5107352), (4883, 4300928), (8224, 2553676), (9766, 2150464), (16448, 1276838), (19532, 1075232), (32896, 638419), (33601, 625024), (39064, 537616), (67202, 312512), (78128, 268808), (134404, 156256)]