21000968972

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{269257}}^1$

素因数の和:269346

約数の個数: 48

約数和(自身を含む): 41254633728

約数和(自身を除く): 20253664756

約数列:

[1, 2, 4, 17, 31, 34, 37, 62, 68, 74, 124, 148, 527, 629, 1054, 1147, 1258, 2108, 2294, 2516, 4588, 19499, 38998, 77996, 269257, 538514, 1077028, 4577369, 8346967, 9154738, 9962509, 16693934, 18309476, 19925018, 33387868, 39850036, 141898439, 169362653, 283796878, 308837779, 338725306, 567593756, 617675558, 677450612, 1235351116, 5250242243, 10500484486, 21000968972]

約数ペア:

[(1, 21000968972), (2, 10500484486), (4, 5250242243), (17, 1235351116), (31, 677450612), (34, 617675558), (37, 567593756), (62, 338725306), (68, 308837779), (74, 283796878), (124, 169362653), (148, 141898439), (527, 39850036), (629, 33387868), (1054, 19925018), (1147, 18309476), (1258, 16693934), (2108, 9962509), (2294, 9154738), (2516, 8346967), (4588, 4577369), (19499, 1077028), (38998, 538514), (77996, 269257)]