20810916

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{269}}^1\times {\mathrm{307}}^1$

素因数の和:593

約数の個数: 72

約数和(自身を含む): 60540480

約数和(自身を除く): 39729564

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 269, 307, 538, 614, 807, 921, 1076, 1228, 1614, 1842, 1883, 2149, 2421, 2763, 3228, 3684, 3766, 4298, 4842, 5526, 5649, 6447, 7532, 8596, 9684, 11052, 11298, 12894, 16947, 19341, 22596, 25788, 33894, 38682, 67788, 77364, 82583, 165166, 247749, 330332, 495498, 578081, 743247, 990996, 1156162, 1486494, 1734243, 2312324, 2972988, 3468486, 5202729, 6936972, 10405458, 20810916]

約数ペア:

[(1, 20810916), (2, 10405458), (3, 6936972), (4, 5202729), (6, 3468486), (7, 2972988), (9, 2312324), (12, 1734243), (14, 1486494), (18, 1156162), (21, 990996), (28, 743247), (36, 578081), (42, 495498), (63, 330332), (84, 247749), (126, 165166), (252, 82583), (269, 77364), (307, 67788), (538, 38682), (614, 33894), (807, 25788), (921, 22596), (1076, 19341), (1228, 16947), (1614, 12894), (1842, 11298), (1883, 11052), (2149, 9684), (2421, 8596), (2763, 7532), (3228, 6447), (3684, 5649), (3766, 5526), (4298, 4842)]