18173168

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2131}}^1$

素因数の和:2193

約数の個数: 40

約数和(自身を含む): 38862096

約数和(自身を除く): 20688928

約数列:

[1, 2, 4, 8, 13, 16, 26, 41, 52, 82, 104, 164, 208, 328, 533, 656, 1066, 2131, 2132, 4262, 4264, 8524, 8528, 17048, 27703, 34096, 55406, 87371, 110812, 174742, 221624, 349484, 443248, 698968, 1135823, 1397936, 2271646, 4543292, 9086584, 18173168]

約数ペア:

[(1, 18173168), (2, 9086584), (4, 4543292), (8, 2271646), (13, 1397936), (16, 1135823), (26, 698968), (41, 443248), (52, 349484), (82, 221624), (104, 174742), (164, 110812), (208, 87371), (328, 55406), (533, 34096), (656, 27703), (1066, 17048), (2131, 8528), (2132, 8524), (4262, 4264)]