20674784

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{3823}}^1$

素因数の和:3859

約数の個数: 36

約数和(自身を含む): 44086896

約数和(自身を除く): 23412112

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 169, 208, 338, 416, 676, 1352, 2704, 3823, 5408, 7646, 15292, 30584, 49699, 61168, 99398, 122336, 198796, 397592, 646087, 795184, 1292174, 1590368, 2584348, 5168696, 10337392, 20674784]

約数ペア:

[(1, 20674784), (2, 10337392), (4, 5168696), (8, 2584348), (13, 1590368), (16, 1292174), (26, 795184), (32, 646087), (52, 397592), (104, 198796), (169, 122336), (208, 99398), (338, 61168), (416, 49699), (676, 30584), (1352, 15292), (2704, 7646), (3823, 5408)]