19723161

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:237

約数の個数: 32

約数和(自身を含む): 28753920

約数和(自身を除く): 9030759

約数列:

[1, 3, 29, 31, 71, 87, 93, 103, 213, 309, 899, 2059, 2201, 2697, 2987, 3193, 6177, 6603, 7313, 8961, 9579, 21939, 63829, 92597, 191487, 212077, 226703, 277791, 636231, 680109, 6574387, 19723161]

約数ペア:

[(1, 19723161), (3, 6574387), (29, 680109), (31, 636231), (71, 277791), (87, 226703), (93, 212077), (103, 191487), (213, 92597), (309, 63829), (899, 21939), (2059, 9579), (2201, 8961), (2697, 7313), (2987, 6603), (3193, 6177)]