21553532

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{769}}^1$

素因数の和:811

約数の個数: 72

約数和(自身を含む): 51614640

約数和(自身を除く): 30061108

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 49, 52, 77, 91, 98, 143, 154, 182, 196, 286, 308, 364, 539, 572, 637, 769, 1001, 1078, 1274, 1538, 2002, 2156, 2548, 3076, 4004, 5383, 7007, 8459, 9997, 10766, 14014, 16918, 19994, 21532, 28028, 33836, 37681, 39988, 59213, 69979, 75362, 109967, 118426, 139958, 150724, 219934, 236852, 279916, 414491, 439868, 489853, 769769, 828982, 979706, 1539538, 1657964, 1959412, 3079076, 5388383, 10776766, 21553532]

約数ペア:

[(1, 21553532), (2, 10776766), (4, 5388383), (7, 3079076), (11, 1959412), (13, 1657964), (14, 1539538), (22, 979706), (26, 828982), (28, 769769), (44, 489853), (49, 439868), (52, 414491), (77, 279916), (91, 236852), (98, 219934), (143, 150724), (154, 139958), (182, 118426), (196, 109967), (286, 75362), (308, 69979), (364, 59213), (539, 39988), (572, 37681), (637, 33836), (769, 28028), (1001, 21532), (1078, 19994), (1274, 16918), (1538, 14014), (2002, 10766), (2156, 9997), (2548, 8459), (3076, 7007), (4004, 5383)]