20177073

素因数分解:

$3^3\times 7^2\times {\mathrm{101}}^1\times {\mathrm{151}}^1$

素因数の和:275

約数の個数: 48

約数和(自身を含む): 35349120

約数和(自身を除く): 15172047

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 101, 147, 151, 189, 303, 441, 453, 707, 909, 1057, 1323, 1359, 2121, 2727, 3171, 4077, 4949, 6363, 7399, 9513, 14847, 15251, 19089, 22197, 28539, 44541, 45753, 66591, 106757, 133623, 137259, 199773, 320271, 411777, 747299, 960813, 2241897, 2882439, 6725691, 20177073]

約数ペア:

[(1, 20177073), (3, 6725691), (7, 2882439), (9, 2241897), (21, 960813), (27, 747299), (49, 411777), (63, 320271), (101, 199773), (147, 137259), (151, 133623), (189, 106757), (303, 66591), (441, 45753), (453, 44541), (707, 28539), (909, 22197), (1057, 19089), (1323, 15251), (1359, 14847), (2121, 9513), (2727, 7399), (3171, 6363), (4077, 4949)]