20065851

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:196

約数の個数: 48

約数和(自身を含む): 33022080

約数和(自身を除く): 12956229

約数列:

[1, 3, 9, 13, 39, 41, 47, 89, 117, 123, 141, 267, 369, 423, 533, 611, 801, 1157, 1599, 1833, 1927, 3471, 3649, 4183, 4797, 5499, 5781, 10413, 10947, 12549, 17343, 25051, 32841, 37647, 47437, 54379, 75153, 142311, 163137, 171503, 225459, 426933, 489411, 514509, 1543527, 2229539, 6688617, 20065851]

約数ペア:

[(1, 20065851), (3, 6688617), (9, 2229539), (13, 1543527), (39, 514509), (41, 489411), (47, 426933), (89, 225459), (117, 171503), (123, 163137), (141, 142311), (267, 75153), (369, 54379), (423, 47437), (533, 37647), (611, 32841), (801, 25051), (1157, 17343), (1599, 12549), (1833, 10947), (1927, 10413), (3471, 5781), (3649, 5499), (4183, 4797)]