19949072

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{8719}}^1$

素因数の和:8751

約数の個数: 40

約数和(自身を含む): 45413760

約数和(自身を除く): 25464688

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 143, 176, 208, 286, 572, 1144, 2288, 8719, 17438, 34876, 69752, 95909, 113347, 139504, 191818, 226694, 383636, 453388, 767272, 906776, 1246817, 1534544, 1813552, 2493634, 4987268, 9974536, 19949072]

約数ペア:

[(1, 19949072), (2, 9974536), (4, 4987268), (8, 2493634), (11, 1813552), (13, 1534544), (16, 1246817), (22, 906776), (26, 767272), (44, 453388), (52, 383636), (88, 226694), (104, 191818), (143, 139504), (176, 113347), (208, 95909), (286, 69752), (572, 34876), (1144, 17438), (2288, 8719)]