20807540019

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{379}}^1\times {\mathrm{37889}}^1$

素因数の和:38304

約数の個数: 48

約数和(自身を含む): 35937907200

約数和(自身を除く): 15130367181

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 379, 483, 1137, 1449, 2653, 3411, 7959, 8717, 23877, 26151, 37889, 61019, 78453, 113667, 183057, 265223, 341001, 549171, 795669, 871447, 2387007, 2614341, 6100129, 7843023, 14359931, 18300387, 43079793, 54901161, 100519517, 129239379, 301558551, 330278413, 904675653, 990835239, 2311948891, 2972505717, 6935846673, 20807540019]

約数ペア:

[(1, 20807540019), (3, 6935846673), (7, 2972505717), (9, 2311948891), (21, 990835239), (23, 904675653), (63, 330278413), (69, 301558551), (161, 129239379), (207, 100519517), (379, 54901161), (483, 43079793), (1137, 18300387), (1449, 14359931), (2653, 7843023), (3411, 6100129), (7959, 2614341), (8717, 2387007), (23877, 871447), (26151, 795669), (37889, 549171), (61019, 341001), (78453, 265223), (113667, 183057)]