21455224

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{727}}^1$

素因数の和:788

約数の個数: 64

約数和(自身を含む): 50319360

約数和(自身を除く): 28864136

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 31, 34, 56, 62, 68, 119, 124, 136, 217, 238, 248, 434, 476, 527, 727, 868, 952, 1054, 1454, 1736, 2108, 2908, 3689, 4216, 5089, 5816, 7378, 10178, 12359, 14756, 20356, 22537, 24718, 29512, 40712, 45074, 49436, 86513, 90148, 98872, 157759, 173026, 180296, 315518, 346052, 383129, 631036, 692104, 766258, 1262072, 1532516, 2681903, 3065032, 5363806, 10727612, 21455224]

約数ペア:

[(1, 21455224), (2, 10727612), (4, 5363806), (7, 3065032), (8, 2681903), (14, 1532516), (17, 1262072), (28, 766258), (31, 692104), (34, 631036), (56, 383129), (62, 346052), (68, 315518), (119, 180296), (124, 173026), (136, 157759), (217, 98872), (238, 90148), (248, 86513), (434, 49436), (476, 45074), (527, 40712), (727, 29512), (868, 24718), (952, 22537), (1054, 20356), (1454, 14756), (1736, 12359), (2108, 10178), (2908, 7378), (3689, 5816), (4216, 5089)]