20513025

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{7013}}^1$

素因数の和:7042

約数の個数: 36

約数和(自身を含む): 39572988

約数和(自身を除く): 19059963

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 195, 225, 325, 585, 975, 2925, 7013, 21039, 35065, 63117, 91169, 105195, 175325, 273507, 315585, 455845, 525975, 820521, 1367535, 1577925, 2279225, 4102605, 6837675, 20513025]

約数ペア:

[(1, 20513025), (3, 6837675), (5, 4102605), (9, 2279225), (13, 1577925), (15, 1367535), (25, 820521), (39, 525975), (45, 455845), (65, 315585), (75, 273507), (117, 175325), (195, 105195), (225, 91169), (325, 63117), (585, 35065), (975, 21039), (2925, 7013)]