21357410

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{683}}^1$

素因数の和:802

約数の個数: 32

約数和(自身を含む): 39890880

約数和(自身を除く): 18533470

約数列:

[1, 2, 5, 10, 53, 59, 106, 118, 265, 295, 530, 590, 683, 1366, 3127, 3415, 6254, 6830, 15635, 31270, 36199, 40297, 72398, 80594, 180995, 201485, 361990, 402970, 2135741, 4271482, 10678705, 21357410]

約数ペア:

[(1, 21357410), (2, 10678705), (5, 4271482), (10, 2135741), (53, 402970), (59, 361990), (106, 201485), (118, 180995), (265, 80594), (295, 72398), (530, 40297), (590, 36199), (683, 31270), (1366, 15635), (3127, 6830), (3415, 6254)]