21515664

素因数分解:

$2^4\times 3^1\times {\mathrm{173}}^1\times {\mathrm{2591}}^1$

素因数の和:2775

約数の個数: 40

約数和(自身を含む): 55924992

約数和(自身を除く): 34409328

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 173, 346, 519, 692, 1038, 1384, 2076, 2591, 2768, 4152, 5182, 7773, 8304, 10364, 15546, 20728, 31092, 41456, 62184, 124368, 448243, 896486, 1344729, 1792972, 2689458, 3585944, 5378916, 7171888, 10757832, 21515664]

約数ペア:

[(1, 21515664), (2, 10757832), (3, 7171888), (4, 5378916), (6, 3585944), (8, 2689458), (12, 1792972), (16, 1344729), (24, 896486), (48, 448243), (173, 124368), (346, 62184), (519, 41456), (692, 31092), (1038, 20728), (1384, 15546), (2076, 10364), (2591, 8304), (2768, 7773), (4152, 5182)]