21401810

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{1879}}^1$

素因数の和:1970

約数の個数: 32

約数和(自身を含む): 41420160

約数和(自身を除く): 20018350

約数列:

[1, 2, 5, 10, 17, 34, 67, 85, 134, 170, 335, 670, 1139, 1879, 2278, 3758, 5695, 9395, 11390, 18790, 31943, 63886, 125893, 159715, 251786, 319430, 629465, 1258930, 2140181, 4280362, 10700905, 21401810]

約数ペア:

[(1, 21401810), (2, 10700905), (5, 4280362), (10, 2140181), (17, 1258930), (34, 629465), (67, 319430), (85, 251786), (134, 159715), (170, 125893), (335, 63886), (670, 31943), (1139, 18790), (1879, 11390), (2278, 9395), (3758, 5695)]