20921151410

素因数分解:

$2^1\times 5^1\times {\mathrm{3911}}^1\times {\mathrm{534931}}^1$

素因数の和:538849

約数の個数: 16

約数和(自身を含む): 37667771712

約数和(自身を除く): 16746620302

約数列:

[1, 2, 5, 10, 3911, 7822, 19555, 39110, 534931, 1069862, 2674655, 5349310, 2092115141, 4184230282, 10460575705, 20921151410]

約数ペア:

[(1, 20921151410), (2, 10460575705), (5, 4184230282), (10, 2092115141), (3911, 5349310), (7822, 2674655), (19555, 1069862), (39110, 534931)]