20458516

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20707}}^1$

素因数の和:20743

約数の個数: 24

約数和(自身を含む): 40587680

約数和(自身を除く): 20129164

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 20707, 41414, 82828, 269191, 393433, 538382, 786866, 1076764, 1573732, 5114629, 10229258, 20458516]

約数ペア:

[(1, 20458516), (2, 10229258), (4, 5114629), (13, 1573732), (19, 1076764), (26, 786866), (38, 538382), (52, 393433), (76, 269191), (247, 82828), (494, 41414), (988, 20707)]