20128609917

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{1667}}^1\times {\mathrm{11467}}^1$

素因数の和:13159

約数の個数: 40

約数和(自身を含む): 32403889056

約数和(自身を除く): 12275279139

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 1667, 5001, 11467, 15003, 21671, 34401, 45009, 65013, 103203, 135027, 149071, 195039, 309609, 447213, 585117, 928827, 1341639, 1755351, 4024917, 12074751, 19115489, 57346467, 172039401, 248501357, 516118203, 745504071, 1548354609, 2236512213, 6709536639, 20128609917]

約数ペア:

[(1, 20128609917), (3, 6709536639), (9, 2236512213), (13, 1548354609), (27, 745504071), (39, 516118203), (81, 248501357), (117, 172039401), (351, 57346467), (1053, 19115489), (1667, 12074751), (5001, 4024917), (11467, 1755351), (15003, 1341639), (21671, 928827), (34401, 585117), (45009, 447213), (65013, 309609), (103203, 195039), (135027, 149071)]