21283172016

素因数分解:

$2^4\times 3^1\times {\mathrm{31}}^1\times {\mathrm{353}}^1\times {\mathrm{40519}}^1$

素因数の和:40914

約数の個数: 80

約数和(自身を含む): 56917309440

約数和(自身を除く): 35634137424

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 48, 62, 93, 124, 186, 248, 353, 372, 496, 706, 744, 1059, 1412, 1488, 2118, 2824, 4236, 5648, 8472, 10943, 16944, 21886, 32829, 40519, 43772, 65658, 81038, 87544, 121557, 131316, 162076, 175088, 243114, 262632, 324152, 486228, 525264, 648304, 972456, 1256089, 1944912, 2512178, 3768267, 5024356, 7536534, 10048712, 14303207, 15073068, 20097424, 28606414, 30146136, 42909621, 57212828, 60292272, 85819242, 114425656, 171638484, 228851312, 343276968, 443399417, 686553936, 886798834, 1330198251, 1773597668, 2660396502, 3547195336, 5320793004, 7094390672, 10641586008, 21283172016]

約数ペア:

[(1, 21283172016), (2, 10641586008), (3, 7094390672), (4, 5320793004), (6, 3547195336), (8, 2660396502), (12, 1773597668), (16, 1330198251), (24, 886798834), (31, 686553936), (48, 443399417), (62, 343276968), (93, 228851312), (124, 171638484), (186, 114425656), (248, 85819242), (353, 60292272), (372, 57212828), (496, 42909621), (706, 30146136), (744, 28606414), (1059, 20097424), (1412, 15073068), (1488, 14303207), (2118, 10048712), (2824, 7536534), (4236, 5024356), (5648, 3768267), (8472, 2512178), (10943, 1944912), (16944, 1256089), (21886, 972456), (32829, 648304), (40519, 525264), (43772, 486228), (65658, 324152), (81038, 262632), (87544, 243114), (121557, 175088), (131316, 162076)]