20897786

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{577}}^1$

素因数の和:798

約数の個数: 32

約数和(自身を含む): 38841600

約数和(自身を除く): 17943814

約数列:

[1, 2, 7, 13, 14, 26, 91, 182, 199, 398, 577, 1154, 1393, 2587, 2786, 4039, 5174, 7501, 8078, 15002, 18109, 36218, 52507, 105014, 114823, 229646, 803761, 1492699, 1607522, 2985398, 10448893, 20897786]

約数ペア:

[(1, 20897786), (2, 10448893), (7, 2985398), (13, 1607522), (14, 1492699), (26, 803761), (91, 229646), (182, 114823), (199, 105014), (398, 52507), (577, 36218), (1154, 18109), (1393, 15002), (2587, 8078), (2786, 7501), (4039, 5174)]