215508279

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{540121}}^1$

素因数の和:540150

約数の個数: 16

約数和(自身を含む): 345678080

約数和(自身を除く): 130169801

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 540121, 1620363, 3780847, 10262299, 11342541, 30786897, 71836093, 215508279]

約数ペア:

[(1, 215508279), (3, 71836093), (7, 30786897), (19, 11342541), (21, 10262299), (57, 3780847), (133, 1620363), (399, 540121)]