18475912

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{619}}^1$

素因数の和:686

約数の個数: 64

約数和(自身を含む): 43747200

約数和(自身を除く): 25271288

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 41, 52, 56, 82, 91, 104, 164, 182, 287, 328, 364, 533, 574, 619, 728, 1066, 1148, 1238, 2132, 2296, 2476, 3731, 4264, 4333, 4952, 7462, 8047, 8666, 14924, 16094, 17332, 25379, 29848, 32188, 34664, 50758, 56329, 64376, 101516, 112658, 177653, 203032, 225316, 329927, 355306, 450632, 659854, 710612, 1319708, 1421224, 2309489, 2639416, 4618978, 9237956, 18475912]

約数ペア:

[(1, 18475912), (2, 9237956), (4, 4618978), (7, 2639416), (8, 2309489), (13, 1421224), (14, 1319708), (26, 710612), (28, 659854), (41, 450632), (52, 355306), (56, 329927), (82, 225316), (91, 203032), (104, 177653), (164, 112658), (182, 101516), (287, 64376), (328, 56329), (364, 50758), (533, 34664), (574, 32188), (619, 29848), (728, 25379), (1066, 17332), (1148, 16094), (1238, 14924), (2132, 8666), (2296, 8047), (2476, 7462), (3731, 4952), (4264, 4333)]