20541378

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{269}}^1$

素因数の和:387

約数の個数: 64

約数和(自身を含む): 48988800

約数和(自身を除く): 28447422

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 89, 143, 178, 267, 269, 286, 429, 534, 538, 807, 858, 979, 1157, 1614, 1958, 2314, 2937, 2959, 3471, 3497, 5874, 5918, 6942, 6994, 8877, 10491, 12727, 17754, 20982, 23941, 25454, 38181, 38467, 47882, 71823, 76362, 76934, 115401, 143646, 230802, 263351, 311233, 526702, 622466, 790053, 933699, 1580106, 1867398, 3423563, 6847126, 10270689, 20541378]

約数ペア:

[(1, 20541378), (2, 10270689), (3, 6847126), (6, 3423563), (11, 1867398), (13, 1580106), (22, 933699), (26, 790053), (33, 622466), (39, 526702), (66, 311233), (78, 263351), (89, 230802), (143, 143646), (178, 115401), (267, 76934), (269, 76362), (286, 71823), (429, 47882), (534, 38467), (538, 38181), (807, 25454), (858, 23941), (979, 20982), (1157, 17754), (1614, 12727), (1958, 10491), (2314, 8877), (2937, 6994), (2959, 6942), (3471, 5918), (3497, 5874)]