20781334

素因数分解:

$2^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1\times {\mathrm{181}}^1$

素因数の和:388

約数の個数: 32

約数和(自身を含む): 36691200

約数和(自身を除く): 15909866

約数列:

[1, 2, 7, 14, 59, 118, 139, 181, 278, 362, 413, 826, 973, 1267, 1946, 2534, 8201, 10679, 16402, 21358, 25159, 50318, 57407, 74753, 114814, 149506, 176113, 352226, 1484381, 2968762, 10390667, 20781334]

約数ペア:

[(1, 20781334), (2, 10390667), (7, 2968762), (14, 1484381), (59, 352226), (118, 176113), (139, 149506), (181, 114814), (278, 74753), (362, 57407), (413, 50318), (826, 25159), (973, 21358), (1267, 16402), (1946, 10679), (2534, 8201)]