20691836

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{467}}^1$

素因数の和:554

約数の個数: 48

約数和(自身を含む): 42456960

約数和(自身を除く): 21765124

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 53, 76, 106, 209, 212, 418, 467, 583, 836, 934, 1007, 1166, 1868, 2014, 2332, 4028, 5137, 8873, 10274, 11077, 17746, 20548, 22154, 24751, 35492, 44308, 49502, 97603, 99004, 195206, 272261, 390412, 470269, 544522, 940538, 1089044, 1881076, 5172959, 10345918, 20691836]

約数ペア:

[(1, 20691836), (2, 10345918), (4, 5172959), (11, 1881076), (19, 1089044), (22, 940538), (38, 544522), (44, 470269), (53, 390412), (76, 272261), (106, 195206), (209, 99004), (212, 97603), (418, 49502), (467, 44308), (583, 35492), (836, 24751), (934, 22154), (1007, 20548), (1166, 17746), (1868, 11077), (2014, 10274), (2332, 8873), (4028, 5137)]