21287196

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{4969}}^1$

素因数の和:5003

約数の個数: 72

約数和(自身を含む): 65126880

約数和(自身を除く): 43839684

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 28, 34, 36, 42, 51, 63, 68, 84, 102, 119, 126, 153, 204, 238, 252, 306, 357, 476, 612, 714, 1071, 1428, 2142, 4284, 4969, 9938, 14907, 19876, 29814, 34783, 44721, 59628, 69566, 84473, 89442, 104349, 139132, 168946, 178884, 208698, 253419, 313047, 337892, 417396, 506838, 591311, 626094, 760257, 1013676, 1182622, 1252188, 1520514, 1773933, 2365244, 3041028, 3547866, 5321799, 7095732, 10643598, 21287196]

約数ペア:

[(1, 21287196), (2, 10643598), (3, 7095732), (4, 5321799), (6, 3547866), (7, 3041028), (9, 2365244), (12, 1773933), (14, 1520514), (17, 1252188), (18, 1182622), (21, 1013676), (28, 760257), (34, 626094), (36, 591311), (42, 506838), (51, 417396), (63, 337892), (68, 313047), (84, 253419), (102, 208698), (119, 178884), (126, 168946), (153, 139132), (204, 104349), (238, 89442), (252, 84473), (306, 69566), (357, 59628), (476, 44721), (612, 34783), (714, 29814), (1071, 19876), (1428, 14907), (2142, 9938), (4284, 4969)]