21015706

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1$

素因数の和:334

約数の個数: 32

約数和(自身を含む): 34947072

約数和(自身を除く): 13931366

約数列:

[1, 2, 17, 31, 34, 62, 127, 157, 254, 314, 527, 1054, 2159, 2669, 3937, 4318, 4867, 5338, 7874, 9734, 19939, 39878, 66929, 82739, 133858, 165478, 338963, 618109, 677926, 1236218, 10507853, 21015706]

約数ペア:

[(1, 21015706), (2, 10507853), (17, 1236218), (31, 677926), (34, 618109), (62, 338963), (127, 165478), (157, 133858), (254, 82739), (314, 66929), (527, 39878), (1054, 19939), (2159, 9734), (2669, 7874), (3937, 5338), (4318, 4867)]