20391514

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:151

約数の個数: 64

約数和(自身を含む): 38610432

約数和(自身を除く): 18218918

約数列:

[1, 2, 11, 13, 22, 26, 37, 41, 47, 74, 82, 94, 143, 286, 407, 451, 481, 517, 533, 611, 814, 902, 962, 1034, 1066, 1222, 1517, 1739, 1927, 3034, 3478, 3854, 5291, 5863, 6721, 10582, 11726, 13442, 16687, 19129, 19721, 21197, 22607, 25051, 33374, 38258, 39442, 42394, 45214, 50102, 71299, 142598, 216931, 248677, 275561, 433862, 497354, 551122, 784289, 926887, 1568578, 1853774, 10195757, 20391514]

約数ペア:

[(1, 20391514), (2, 10195757), (11, 1853774), (13, 1568578), (22, 926887), (26, 784289), (37, 551122), (41, 497354), (47, 433862), (74, 275561), (82, 248677), (94, 216931), (143, 142598), (286, 71299), (407, 50102), (451, 45214), (481, 42394), (517, 39442), (533, 38258), (611, 33374), (814, 25051), (902, 22607), (962, 21197), (1034, 19721), (1066, 19129), (1222, 16687), (1517, 13442), (1739, 11726), (1927, 10582), (3034, 6721), (3478, 5863), (3854, 5291)]