156977373

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{397}}^1\times {\mathrm{991}}^1$

素因数の和:1417

約数の個数: 32

約数和(自身を含む): 252682240

約数和(自身を除く): 95704867

約数列:

[1, 3, 7, 19, 21, 57, 133, 397, 399, 991, 1191, 2779, 2973, 6937, 7543, 8337, 18829, 20811, 22629, 52801, 56487, 131803, 158403, 393427, 395409, 1180281, 2753989, 7475113, 8261967, 22425339, 52325791, 156977373]

約数ペア:

[(1, 156977373), (3, 52325791), (7, 22425339), (19, 8261967), (21, 7475113), (57, 2753989), (133, 1180281), (397, 395409), (399, 393427), (991, 158403), (1191, 131803), (2779, 56487), (2973, 52801), (6937, 22629), (7543, 20811), (8337, 18829)]