21767384

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{281}}^1\times {\mathrm{421}}^1$

素因数の和:731

約数の個数: 32

約数和(自身を含む): 42841440

約数和(自身を除く): 21074056

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 281, 421, 562, 842, 1124, 1684, 2248, 3368, 6463, 9683, 12926, 19366, 25852, 38732, 51704, 77464, 118301, 236602, 473204, 946408, 2720923, 5441846, 10883692, 21767384]

約数ペア:

[(1, 21767384), (2, 10883692), (4, 5441846), (8, 2720923), (23, 946408), (46, 473204), (92, 236602), (184, 118301), (281, 77464), (421, 51704), (562, 38732), (842, 25852), (1124, 19366), (1684, 12926), (2248, 9683), (3368, 6463)]