21079474

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{601}}^1$

素因数の和:706

約数の個数: 32

約数和(自身を含む): 36408960

約数和(自身を除く): 15329486

約数列:

[1, 2, 13, 19, 26, 38, 71, 142, 247, 494, 601, 923, 1202, 1349, 1846, 2698, 7813, 11419, 15626, 17537, 22838, 35074, 42671, 85342, 148447, 296894, 554723, 810749, 1109446, 1621498, 10539737, 21079474]

約数ペア:

[(1, 21079474), (2, 10539737), (13, 1621498), (19, 1109446), (26, 810749), (38, 554723), (71, 296894), (142, 148447), (247, 85342), (494, 42671), (601, 35074), (923, 22838), (1202, 17537), (1349, 15626), (1846, 11419), (2698, 7813)]