19404996

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2347}}^1$

素因数の和:2420

約数の個数: 48

約数和(自身を含む): 49702464

約数和(自身を除く): 30297468

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 53, 78, 106, 156, 159, 212, 318, 636, 689, 1378, 2067, 2347, 2756, 4134, 4694, 7041, 8268, 9388, 14082, 28164, 30511, 61022, 91533, 122044, 124391, 183066, 248782, 366132, 373173, 497564, 746346, 1492692, 1617083, 3234166, 4851249, 6468332, 9702498, 19404996]

約数ペア:

[(1, 19404996), (2, 9702498), (3, 6468332), (4, 4851249), (6, 3234166), (12, 1617083), (13, 1492692), (26, 746346), (39, 497564), (52, 373173), (53, 366132), (78, 248782), (106, 183066), (156, 124391), (159, 122044), (212, 91533), (318, 61022), (636, 30511), (689, 28164), (1378, 14082), (2067, 9388), (2347, 8268), (2756, 7041), (4134, 4694)]