21000331755

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3988667}}^1$

素因数の和:3988697

約数の個数: 40

約数和(自身を含む): 40540821552

約数和(自身を除く): 19540489797

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 81, 117, 135, 195, 351, 405, 585, 1053, 1755, 5265, 3988667, 11966001, 19943335, 35898003, 51852671, 59830005, 107694009, 155558013, 179490015, 259263355, 323082027, 466674039, 538470045, 777790065, 1400022117, 1615410135, 2333370195, 4200066351, 7000110585, 21000331755]

約数ペア:

[(1, 21000331755), (3, 7000110585), (5, 4200066351), (9, 2333370195), (13, 1615410135), (15, 1400022117), (27, 777790065), (39, 538470045), (45, 466674039), (65, 323082027), (81, 259263355), (117, 179490015), (135, 155558013), (195, 107694009), (351, 59830005), (405, 51852671), (585, 35898003), (1053, 19943335), (1755, 11966001), (5265, 3988667)]