213865745

素因数分解:

$5^1\times {\mathrm{31}}^2\times {\mathrm{47}}^1\times {\mathrm{947}}^1$

素因数の和:1061

約数の個数: 24

約数和(自身を含む): 271112832

約数和(自身を除く): 57247087

約数列:

[1, 5, 31, 47, 155, 235, 947, 961, 1457, 4735, 4805, 7285, 29357, 44509, 45167, 146785, 222545, 225835, 910067, 1379779, 4550335, 6898895, 42773149, 213865745]

約数ペア:

[(1, 213865745), (5, 42773149), (31, 6898895), (47, 4550335), (155, 1379779), (235, 910067), (947, 225835), (961, 222545), (1457, 146785), (4735, 45167), (4805, 44509), (7285, 29357)]