28419986

素因数分解:

$2^1\times 7^1\times {\mathrm{101}}^2\times {\mathrm{199}}^1$

素因数の和:410

約数の個数: 24

約数和(自身を含む): 49454400

約数和(自身を除く): 21034414

約数列:

[1, 2, 7, 14, 101, 199, 202, 398, 707, 1393, 1414, 2786, 10201, 20099, 20402, 40198, 71407, 140693, 142814, 281386, 2029999, 4059998, 14209993, 28419986]

約数ペア:

[(1, 28419986), (2, 14209993), (7, 4059998), (14, 2029999), (101, 281386), (199, 142814), (202, 140693), (398, 71407), (707, 40198), (1393, 20402), (1414, 20099), (2786, 10201)]