18839645

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{281}}^1$

素因数の和:373

約数の個数: 32

約数和(自身を含む): 26313984

約数和(自身を除く): 7474339

約数列:

[1, 5, 11, 23, 53, 55, 115, 253, 265, 281, 583, 1219, 1265, 1405, 2915, 3091, 6095, 6463, 13409, 14893, 15455, 32315, 67045, 71093, 74465, 163823, 342539, 355465, 819115, 1712695, 3767929, 18839645]

約数ペア:

[(1, 18839645), (5, 3767929), (11, 1712695), (23, 819115), (53, 355465), (55, 342539), (115, 163823), (253, 74465), (265, 71093), (281, 67045), (583, 32315), (1219, 15455), (1265, 14893), (1405, 13409), (2915, 6463), (3091, 6095)]