221401516

素因数分解:

$2^2\times 7^1\times {\mathrm{409}}^1\times {\mathrm{19333}}^1$

素因数の和:19753

約数の個数: 24

約数和(自身を含む): 443908640

約数和(自身を除く): 222507124

約数列:

[1, 2, 4, 7, 14, 28, 409, 818, 1636, 2863, 5726, 11452, 19333, 38666, 77332, 135331, 270662, 541324, 7907197, 15814394, 31628788, 55350379, 110700758, 221401516]

約数ペア:

[(1, 221401516), (2, 110700758), (4, 55350379), (7, 31628788), (14, 15814394), (28, 7907197), (409, 541324), (818, 270662), (1636, 135331), (2863, 77332), (5726, 38666), (11452, 19333)]