20571228

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{18433}}^1$

素因数の和:18474

約数の個数: 36

約数和(自身を含む): 53679808

約数和(自身を除く): 33108580

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 124, 186, 279, 372, 558, 1116, 18433, 36866, 55299, 73732, 110598, 165897, 221196, 331794, 571423, 663588, 1142846, 1714269, 2285692, 3428538, 5142807, 6857076, 10285614, 20571228]

約数ペア:

[(1, 20571228), (2, 10285614), (3, 6857076), (4, 5142807), (6, 3428538), (9, 2285692), (12, 1714269), (18, 1142846), (31, 663588), (36, 571423), (62, 331794), (93, 221196), (124, 165897), (186, 110598), (279, 73732), (372, 55299), (558, 36866), (1116, 18433)]