20496795

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{491}}^1$

素因数の和:544

約数の個数: 48

約数和(自身を含む): 37691136

約数和(自身を除く): 17194341

約数列:

[1, 3, 5, 11, 15, 23, 33, 55, 69, 115, 121, 165, 253, 345, 363, 491, 605, 759, 1265, 1473, 1815, 2455, 2783, 3795, 5401, 7365, 8349, 11293, 13915, 16203, 27005, 33879, 41745, 56465, 59411, 81015, 124223, 169395, 178233, 297055, 372669, 621115, 891165, 1366453, 1863345, 4099359, 6832265, 20496795]

約数ペア:

[(1, 20496795), (3, 6832265), (5, 4099359), (11, 1863345), (15, 1366453), (23, 891165), (33, 621115), (55, 372669), (69, 297055), (115, 178233), (121, 169395), (165, 124223), (253, 81015), (345, 59411), (363, 56465), (491, 41745), (605, 33879), (759, 27005), (1265, 16203), (1473, 13915), (1815, 11293), (2455, 8349), (2783, 7365), (3795, 5401)]