19835288

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{661}}^1$

素因数の和:720

約数の個数: 48

約数和(自身を含む): 42262080

約数和(自身を除く): 22426792

約数列:

[1, 2, 4, 8, 11, 22, 31, 44, 62, 88, 121, 124, 242, 248, 341, 484, 661, 682, 968, 1322, 1364, 2644, 2728, 3751, 5288, 7271, 7502, 14542, 15004, 20491, 29084, 30008, 40982, 58168, 79981, 81964, 159962, 163928, 225401, 319924, 450802, 639848, 901604, 1803208, 2479411, 4958822, 9917644, 19835288]

約数ペア:

[(1, 19835288), (2, 9917644), (4, 4958822), (8, 2479411), (11, 1803208), (22, 901604), (31, 639848), (44, 450802), (62, 319924), (88, 225401), (121, 163928), (124, 159962), (242, 81964), (248, 79981), (341, 58168), (484, 40982), (661, 30008), (682, 29084), (968, 20491), (1322, 15004), (1364, 14542), (2644, 7502), (2728, 7271), (3751, 5288)]