21586872

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{337}}^1$

素因数の和:520

約数の個数: 64

約数和(自身を含む): 57676320

約数和(自身を除く): 36089448

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 157, 204, 314, 337, 408, 471, 628, 674, 942, 1011, 1256, 1348, 1884, 2022, 2669, 2696, 3768, 4044, 5338, 5729, 8007, 8088, 10676, 11458, 16014, 17187, 21352, 22916, 32028, 34374, 45832, 52909, 64056, 68748, 105818, 137496, 158727, 211636, 317454, 423272, 634908, 899453, 1269816, 1798906, 2698359, 3597812, 5396718, 7195624, 10793436, 21586872]

約数ペア:

[(1, 21586872), (2, 10793436), (3, 7195624), (4, 5396718), (6, 3597812), (8, 2698359), (12, 1798906), (17, 1269816), (24, 899453), (34, 634908), (51, 423272), (68, 317454), (102, 211636), (136, 158727), (157, 137496), (204, 105818), (314, 68748), (337, 64056), (408, 52909), (471, 45832), (628, 34374), (674, 32028), (942, 22916), (1011, 21352), (1256, 17187), (1348, 16014), (1884, 11458), (2022, 10676), (2669, 8088), (2696, 8007), (3768, 5729), (4044, 5338)]