20101487

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{359}}^1\times {\mathrm{421}}^1$

素因数の和:806

約数の個数: 16

約数和(自身を含む): 24307200

約数和(自身を除く): 4205713

約数列:

[1, 7, 19, 133, 359, 421, 2513, 2947, 6821, 7999, 47747, 55993, 151139, 1057973, 2871641, 20101487]

約数ペア:

[(1, 20101487), (7, 2871641), (19, 1057973), (133, 151139), (359, 55993), (421, 47747), (2513, 7999), (2947, 6821)]