21953387855

素因数分解:

$5^1\times 7^1\times {\mathrm{523}}^1\times {\mathrm{641}}^1\times {\mathrm{1871}}^1$

素因数の和:3047

約数の個数: 32

約数和(自身を含む): 30228277248

約数和(自身を除く): 8274889393

約数列:

[1, 5, 7, 35, 523, 641, 1871, 2615, 3205, 3661, 4487, 9355, 13097, 18305, 22435, 65485, 335243, 978533, 1199311, 1676215, 2346701, 4892665, 5996555, 6849731, 8395177, 11733505, 34248655, 41975885, 627239653, 3136198265, 4390677571, 21953387855]

約数ペア:

[(1, 21953387855), (5, 4390677571), (7, 3136198265), (35, 627239653), (523, 41975885), (641, 34248655), (1871, 11733505), (2615, 8395177), (3205, 6849731), (3661, 5996555), (4487, 4892665), (9355, 2346701), (13097, 1676215), (18305, 1199311), (22435, 978533), (65485, 335243)]