20671482

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1$

素因数の和:235

約数の個数: 64

約数和(自身を含む): 46964736

約数和(自身を除く): 26293254

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 83, 93, 103, 166, 186, 206, 249, 309, 403, 498, 618, 806, 1079, 1209, 1339, 2158, 2418, 2573, 2678, 3193, 3237, 4017, 5146, 6386, 6474, 7719, 8034, 8549, 9579, 15438, 17098, 19158, 25647, 33449, 41509, 51294, 66898, 83018, 100347, 111137, 124527, 200694, 222274, 249054, 265019, 333411, 530038, 666822, 795057, 1590114, 3445247, 6890494, 10335741, 20671482]

約数ペア:

[(1, 20671482), (2, 10335741), (3, 6890494), (6, 3445247), (13, 1590114), (26, 795057), (31, 666822), (39, 530038), (62, 333411), (78, 265019), (83, 249054), (93, 222274), (103, 200694), (166, 124527), (186, 111137), (206, 100347), (249, 83018), (309, 66898), (403, 51294), (498, 41509), (618, 33449), (806, 25647), (1079, 19158), (1209, 17098), (1339, 15438), (2158, 9579), (2418, 8549), (2573, 8034), (2678, 7719), (3193, 6474), (3237, 6386), (4017, 5146)]