21311768

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{941}}^1$

素因数の和:1115

約数の個数: 32

約数和(自身を含む): 42390000

約数和(自身を除く): 21078232

約数列:

[1, 2, 4, 8, 19, 38, 76, 149, 152, 298, 596, 941, 1192, 1882, 2831, 3764, 5662, 7528, 11324, 17879, 22648, 35758, 71516, 140209, 143032, 280418, 560836, 1121672, 2663971, 5327942, 10655884, 21311768]

約数ペア:

[(1, 21311768), (2, 10655884), (4, 5327942), (8, 2663971), (19, 1121672), (38, 560836), (76, 280418), (149, 143032), (152, 140209), (298, 71516), (596, 35758), (941, 22648), (1192, 17879), (1882, 11324), (2831, 7528), (3764, 5662)]