19388205

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:250

約数の個数: 48

約数和(自身を含む): 35043840

約数和(自身を除く): 15655635

約数列:

[1, 3, 5, 9, 15, 45, 47, 89, 103, 141, 235, 267, 309, 423, 445, 515, 705, 801, 927, 1335, 1545, 2115, 4005, 4183, 4635, 4841, 9167, 12549, 14523, 20915, 24205, 27501, 37647, 43569, 45835, 62745, 72615, 82503, 137505, 188235, 217845, 412515, 430849, 1292547, 2154245, 3877641, 6462735, 19388205]

約数ペア:

[(1, 19388205), (3, 6462735), (5, 3877641), (9, 2154245), (15, 1292547), (45, 430849), (47, 412515), (89, 217845), (103, 188235), (141, 137505), (235, 82503), (267, 72615), (309, 62745), (423, 45835), (445, 43569), (515, 37647), (705, 27501), (801, 24205), (927, 20915), (1335, 14523), (1545, 12549), (2115, 9167), (4005, 4841), (4183, 4635)]