21980772

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1181}}^1$

素因数の和:1249

約数の個数: 72

約数和(自身を含む): 61955712

約数和(自身を除く): 39974940

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 47, 66, 94, 99, 132, 141, 188, 198, 282, 396, 423, 517, 564, 846, 1034, 1181, 1551, 1692, 2068, 2362, 3102, 3543, 4653, 4724, 6204, 7086, 9306, 10629, 12991, 14172, 18612, 21258, 25982, 38973, 42516, 51964, 55507, 77946, 111014, 116919, 155892, 166521, 222028, 233838, 333042, 467676, 499563, 610577, 666084, 999126, 1221154, 1831731, 1998252, 2442308, 3663462, 5495193, 7326924, 10990386, 21980772]

約数ペア:

[(1, 21980772), (2, 10990386), (3, 7326924), (4, 5495193), (6, 3663462), (9, 2442308), (11, 1998252), (12, 1831731), (18, 1221154), (22, 999126), (33, 666084), (36, 610577), (44, 499563), (47, 467676), (66, 333042), (94, 233838), (99, 222028), (132, 166521), (141, 155892), (188, 116919), (198, 111014), (282, 77946), (396, 55507), (423, 51964), (517, 42516), (564, 38973), (846, 25982), (1034, 21258), (1181, 18612), (1551, 14172), (1692, 12991), (2068, 10629), (2362, 9306), (3102, 7086), (3543, 6204), (4653, 4724)]