20210476

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{397}}^1$

素因数の和:514

約数の個数: 48

約数和(自身を含む): 42124320

約数和(自身を除く): 21913844

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 89, 143, 178, 286, 356, 397, 572, 794, 979, 1157, 1588, 1958, 2314, 3916, 4367, 4628, 5161, 8734, 10322, 12727, 17468, 20644, 25454, 35333, 50908, 56771, 70666, 113542, 141332, 227084, 388663, 459329, 777326, 918658, 1554652, 1837316, 5052619, 10105238, 20210476]

約数ペア:

[(1, 20210476), (2, 10105238), (4, 5052619), (11, 1837316), (13, 1554652), (22, 918658), (26, 777326), (44, 459329), (52, 388663), (89, 227084), (143, 141332), (178, 113542), (286, 70666), (356, 56771), (397, 50908), (572, 35333), (794, 25454), (979, 20644), (1157, 17468), (1588, 12727), (1958, 10322), (2314, 8734), (3916, 5161), (4367, 4628)]