21110349

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{919}}^1$

素因数の和:985

約数の個数: 32

約数和(自身を含む): 32972800

約数和(自身を除く): 11862451

約数列:

[1, 3, 13, 19, 31, 39, 57, 93, 247, 403, 589, 741, 919, 1209, 1767, 2757, 7657, 11947, 17461, 22971, 28489, 35841, 52383, 85467, 226993, 370357, 541291, 680979, 1111071, 1623873, 7036783, 21110349]

約数ペア:

[(1, 21110349), (3, 7036783), (13, 1623873), (19, 1111071), (31, 680979), (39, 541291), (57, 370357), (93, 226993), (247, 85467), (403, 52383), (589, 35841), (741, 28489), (919, 22971), (1209, 17461), (1767, 11947), (2757, 7657)]