20871864

素因数分解:

$2^3\times 3^3\times {\mathrm{13}}^1\times {\mathrm{7433}}^1$

素因数の和:7461

約数の個数: 64

約数和(自身を含む): 62445600

約数和(自身を除く): 41573736

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 36, 39, 52, 54, 72, 78, 104, 108, 117, 156, 216, 234, 312, 351, 468, 702, 936, 1404, 2808, 7433, 14866, 22299, 29732, 44598, 59464, 66897, 89196, 96629, 133794, 178392, 193258, 200691, 267588, 289887, 386516, 401382, 535176, 579774, 773032, 802764, 869661, 1159548, 1605528, 1739322, 2319096, 2608983, 3478644, 5217966, 6957288, 10435932, 20871864]

約数ペア:

[(1, 20871864), (2, 10435932), (3, 6957288), (4, 5217966), (6, 3478644), (8, 2608983), (9, 2319096), (12, 1739322), (13, 1605528), (18, 1159548), (24, 869661), (26, 802764), (27, 773032), (36, 579774), (39, 535176), (52, 401382), (54, 386516), (72, 289887), (78, 267588), (104, 200691), (108, 193258), (117, 178392), (156, 133794), (216, 96629), (234, 89196), (312, 66897), (351, 59464), (468, 44598), (702, 29732), (936, 22299), (1404, 14866), (2808, 7433)]