21855184

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{587}}^1$

素因数の和:787

約数の個数: 40

約数和(自身を含む): 45934560

約数和(自身を除く): 24079376

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 179, 208, 358, 587, 716, 1174, 1432, 2327, 2348, 2864, 4654, 4696, 7631, 9308, 9392, 15262, 18616, 30524, 37232, 61048, 105073, 122096, 210146, 420292, 840584, 1365949, 1681168, 2731898, 5463796, 10927592, 21855184]

約数ペア:

[(1, 21855184), (2, 10927592), (4, 5463796), (8, 2731898), (13, 1681168), (16, 1365949), (26, 840584), (52, 420292), (104, 210146), (179, 122096), (208, 105073), (358, 61048), (587, 37232), (716, 30524), (1174, 18616), (1432, 15262), (2327, 9392), (2348, 9308), (2864, 7631), (4654, 4696)]