21386504

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{2473}}^1$

素因数の和:2549

約数の個数: 32

約数和(自身を含む): 42750720

約数和(自身を除く): 21364216

約数列:

[1, 2, 4, 8, 23, 46, 47, 92, 94, 184, 188, 376, 1081, 2162, 2473, 4324, 4946, 8648, 9892, 19784, 56879, 113758, 116231, 227516, 232462, 455032, 464924, 929848, 2673313, 5346626, 10693252, 21386504]

約数ペア:

[(1, 21386504), (2, 10693252), (4, 5346626), (8, 2673313), (23, 929848), (46, 464924), (47, 455032), (92, 232462), (94, 227516), (184, 116231), (188, 113758), (376, 56879), (1081, 19784), (2162, 9892), (2473, 8648), (4324, 4946)]