21907418

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{727}}^1$

素因数の和:822

約数の個数: 32

約数和(自身を含む): 37914240

約数和(自身を除く): 16006822

約数列:

[1, 2, 13, 19, 26, 38, 61, 122, 247, 494, 727, 793, 1159, 1454, 1586, 2318, 9451, 13813, 15067, 18902, 27626, 30134, 44347, 88694, 179569, 359138, 576511, 842593, 1153022, 1685186, 10953709, 21907418]

約数ペア:

[(1, 21907418), (2, 10953709), (13, 1685186), (19, 1153022), (26, 842593), (38, 576511), (61, 359138), (122, 179569), (247, 88694), (494, 44347), (727, 30134), (793, 27626), (1159, 18902), (1454, 15067), (1586, 13813), (2318, 9451)]