15247778

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{421}}^1$

素因数の和:642

約数の個数: 32

約数和(自身を含む): 28358400

約数和(自身を除く): 13110622

約数列:

[1, 2, 7, 13, 14, 26, 91, 182, 199, 398, 421, 842, 1393, 2587, 2786, 2947, 5174, 5473, 5894, 10946, 18109, 36218, 38311, 76622, 83779, 167558, 586453, 1089127, 1172906, 2178254, 7623889, 15247778]

約数ペア:

[(1, 15247778), (2, 7623889), (7, 2178254), (13, 1172906), (14, 1089127), (26, 586453), (91, 167558), (182, 83779), (199, 76622), (398, 38311), (421, 36218), (842, 18109), (1393, 10946), (2587, 5894), (2786, 5473), (2947, 5174)]