18238974

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{397}}^1$

素因数の和:465

約数の個数: 64

約数和(自身を含む): 42792960

約数和(自身を除く): 24553986

約数列:

[1, 2, 3, 6, 13, 19, 26, 31, 38, 39, 57, 62, 78, 93, 114, 186, 247, 397, 403, 494, 589, 741, 794, 806, 1178, 1191, 1209, 1482, 1767, 2382, 2418, 3534, 5161, 7543, 7657, 10322, 12307, 15086, 15314, 15483, 22629, 22971, 24614, 30966, 36921, 45258, 45942, 73842, 98059, 159991, 196118, 233833, 294177, 319982, 467666, 479973, 588354, 701499, 959946, 1402998, 3039829, 6079658, 9119487, 18238974]

約数ペア:

[(1, 18238974), (2, 9119487), (3, 6079658), (6, 3039829), (13, 1402998), (19, 959946), (26, 701499), (31, 588354), (38, 479973), (39, 467666), (57, 319982), (62, 294177), (78, 233833), (93, 196118), (114, 159991), (186, 98059), (247, 73842), (397, 45942), (403, 45258), (494, 36921), (589, 30966), (741, 24614), (794, 22971), (806, 22629), (1178, 15483), (1191, 15314), (1209, 15086), (1482, 12307), (1767, 10322), (2382, 7657), (2418, 7543), (3534, 5161)]