21105942

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1447}}^1$

素因数の和:1493

約数の個数: 64

約数和(自身を含む): 52545024

約数和(自身を除く): 31439082

約数列:

[1, 2, 3, 6, 11, 13, 17, 22, 26, 33, 34, 39, 51, 66, 78, 102, 143, 187, 221, 286, 374, 429, 442, 561, 663, 858, 1122, 1326, 1447, 2431, 2894, 4341, 4862, 7293, 8682, 14586, 15917, 18811, 24599, 31834, 37622, 47751, 49198, 56433, 73797, 95502, 112866, 147594, 206921, 270589, 319787, 413842, 541178, 620763, 639574, 811767, 959361, 1241526, 1623534, 1918722, 3517657, 7035314, 10552971, 21105942]

約数ペア:

[(1, 21105942), (2, 10552971), (3, 7035314), (6, 3517657), (11, 1918722), (13, 1623534), (17, 1241526), (22, 959361), (26, 811767), (33, 639574), (34, 620763), (39, 541178), (51, 413842), (66, 319787), (78, 270589), (102, 206921), (143, 147594), (187, 112866), (221, 95502), (286, 73797), (374, 56433), (429, 49198), (442, 47751), (561, 37622), (663, 31834), (858, 24599), (1122, 18811), (1326, 15917), (1447, 14586), (2431, 8682), (2894, 7293), (4341, 4862)]