19587964

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{40471}}^1$

素因数の和:40497

約数の個数: 18

約数和(自身を含む): 37679432

約数和(自身を除く): 18091468

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 40471, 80942, 161884, 445181, 890362, 1780724, 4896991, 9793982, 19587964]

約数ペア:

[(1, 19587964), (2, 9793982), (4, 4896991), (11, 1780724), (22, 890362), (44, 445181), (121, 161884), (242, 80942), (484, 40471)]