20575065

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{29}}^2\times {\mathrm{233}}^1$

素因数の和:306

約数の個数: 48

約数和(自身を含む): 39132288

約数和(自身を除く): 18557223

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 87, 105, 145, 203, 233, 435, 609, 699, 841, 1015, 1165, 1631, 2523, 3045, 3495, 4205, 4893, 5887, 6757, 8155, 12615, 17661, 20271, 24465, 29435, 33785, 47299, 88305, 101355, 141897, 195953, 236495, 587859, 709485, 979765, 1371671, 2939295, 4115013, 6858355, 20575065]

約数ペア:

[(1, 20575065), (3, 6858355), (5, 4115013), (7, 2939295), (15, 1371671), (21, 979765), (29, 709485), (35, 587859), (87, 236495), (105, 195953), (145, 141897), (203, 101355), (233, 88305), (435, 47299), (609, 33785), (699, 29435), (841, 24465), (1015, 20271), (1165, 17661), (1631, 12615), (2523, 8155), (3045, 6757), (3495, 5887), (4205, 4893)]