19521172

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{761}}^1$

素因数の和:840

約数の個数: 36

約数和(自身を含む): 38308788

約数和(自身を除く): 18787616

約数列:

[1, 2, 4, 11, 22, 44, 53, 106, 121, 212, 242, 484, 583, 761, 1166, 1522, 2332, 3044, 6413, 8371, 12826, 16742, 25652, 33484, 40333, 80666, 92081, 161332, 184162, 368324, 443663, 887326, 1774652, 4880293, 9760586, 19521172]

約数ペア:

[(1, 19521172), (2, 9760586), (4, 4880293), (11, 1774652), (22, 887326), (44, 443663), (53, 368324), (106, 184162), (121, 161332), (212, 92081), (242, 80666), (484, 40333), (583, 33484), (761, 25652), (1166, 16742), (1522, 12826), (2332, 8371), (3044, 6413)]