21945392

素因数分解:

$2^4\times 7^1\times {\mathrm{53}}^1\times {\mathrm{3697}}^1$

素因数の和:3765

約数の個数: 40

約数和(自身を含む): 49523616

約数和(自身を除く): 27578224

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 53, 56, 106, 112, 212, 371, 424, 742, 848, 1484, 2968, 3697, 5936, 7394, 14788, 25879, 29576, 51758, 59152, 103516, 195941, 207032, 391882, 414064, 783764, 1371587, 1567528, 2743174, 3135056, 5486348, 10972696, 21945392]

約数ペア:

[(1, 21945392), (2, 10972696), (4, 5486348), (7, 3135056), (8, 2743174), (14, 1567528), (16, 1371587), (28, 783764), (53, 414064), (56, 391882), (106, 207032), (112, 195941), (212, 103516), (371, 59152), (424, 51758), (742, 29576), (848, 25879), (1484, 14788), (2968, 7394), (3697, 5936)]