21160818

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:161

約数の個数: 128

約数和(自身を含む): 59097600

約数和(自身を除く): 37936782

約数列:

[1, 2, 3, 6, 7, 9, 14, 17, 18, 21, 27, 34, 37, 42, 51, 54, 63, 74, 89, 102, 111, 119, 126, 153, 178, 189, 222, 238, 259, 267, 306, 333, 357, 378, 459, 518, 534, 623, 629, 666, 714, 777, 801, 918, 999, 1071, 1246, 1258, 1513, 1554, 1602, 1869, 1887, 1998, 2142, 2331, 2403, 3026, 3213, 3293, 3738, 3774, 4403, 4539, 4662, 4806, 5607, 5661, 6426, 6586, 6993, 8806, 9078, 9879, 10591, 11214, 11322, 13209, 13617, 13986, 16821, 16983, 19758, 21182, 23051, 26418, 27234, 29637, 31773, 33642, 33966, 39627, 40851, 46102, 55981, 59274, 63546, 69153, 79254, 81702, 88911, 95319, 111962, 118881, 138306, 167943, 177822, 190638, 207459, 237762, 285957, 335886, 391867, 414918, 503829, 571914, 622377, 783734, 1007658, 1175601, 1244754, 1511487, 2351202, 3022974, 3526803, 7053606, 10580409, 21160818]

約数ペア:

[(1, 21160818), (2, 10580409), (3, 7053606), (6, 3526803), (7, 3022974), (9, 2351202), (14, 1511487), (17, 1244754), (18, 1175601), (21, 1007658), (27, 783734), (34, 622377), (37, 571914), (42, 503829), (51, 414918), (54, 391867), (63, 335886), (74, 285957), (89, 237762), (102, 207459), (111, 190638), (119, 177822), (126, 167943), (153, 138306), (178, 118881), (189, 111962), (222, 95319), (238, 88911), (259, 81702), (267, 79254), (306, 69153), (333, 63546), (357, 59274), (378, 55981), (459, 46102), (518, 40851), (534, 39627), (623, 33966), (629, 33642), (666, 31773), (714, 29637), (777, 27234), (801, 26418), (918, 23051), (999, 21182), (1071, 19758), (1246, 16983), (1258, 16821), (1513, 13986), (1554, 13617), (1602, 13209), (1869, 11322), (1887, 11214), (1998, 10591), (2142, 9879), (2331, 9078), (2403, 8806), (3026, 6993), (3213, 6586), (3293, 6426), (3738, 5661), (3774, 5607), (4403, 4806), (4539, 4662)]