19955103

素因数分解:

$3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:228

約数の個数: 48

約数和(自身を含む): 33269760

約数和(自身を除く): 13314657

約数列:

[1, 3, 7, 21, 29, 31, 49, 87, 93, 147, 151, 203, 217, 453, 609, 651, 899, 1057, 1421, 1519, 2697, 3171, 4263, 4379, 4557, 4681, 6293, 7399, 13137, 14043, 18879, 22197, 30653, 32767, 44051, 91959, 98301, 132153, 135749, 214571, 229369, 407247, 643713, 688107, 950243, 2850729, 6651701, 19955103]

約数ペア:

[(1, 19955103), (3, 6651701), (7, 2850729), (21, 950243), (29, 688107), (31, 643713), (49, 407247), (87, 229369), (93, 214571), (147, 135749), (151, 132153), (203, 98301), (217, 91959), (453, 44051), (609, 32767), (651, 30653), (899, 22197), (1057, 18879), (1421, 14043), (1519, 13137), (2697, 7399), (3171, 6293), (4263, 4681), (4379, 4557)]