18968276

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{683}}^1$

素因数の和:871

約数の個数: 24

約数和(自身を含む): 34128864

約数和(自身を除く): 15160588

約数列:

[1, 2, 4, 53, 106, 131, 212, 262, 524, 683, 1366, 2732, 6943, 13886, 27772, 36199, 72398, 89473, 144796, 178946, 357892, 4742069, 9484138, 18968276]

約数ペア:

[(1, 18968276), (2, 9484138), (4, 4742069), (53, 357892), (106, 178946), (131, 144796), (212, 89473), (262, 72398), (524, 36199), (683, 27772), (1366, 13886), (2732, 6943)]