21276648

素因数分解:

$2^3\times 3^3\times {\mathrm{137}}^1\times {\mathrm{719}}^1$

素因数の和:871

約数の個数: 64

約数和(自身を含む): 59616000

約数和(自身を除く): 38339352

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 137, 216, 274, 411, 548, 719, 822, 1096, 1233, 1438, 1644, 2157, 2466, 2876, 3288, 3699, 4314, 4932, 5752, 6471, 7398, 8628, 9864, 12942, 14796, 17256, 19413, 25884, 29592, 38826, 51768, 77652, 98503, 155304, 197006, 295509, 394012, 591018, 788024, 886527, 1182036, 1773054, 2364072, 2659581, 3546108, 5319162, 7092216, 10638324, 21276648]

約数ペア:

[(1, 21276648), (2, 10638324), (3, 7092216), (4, 5319162), (6, 3546108), (8, 2659581), (9, 2364072), (12, 1773054), (18, 1182036), (24, 886527), (27, 788024), (36, 591018), (54, 394012), (72, 295509), (108, 197006), (137, 155304), (216, 98503), (274, 77652), (411, 51768), (548, 38826), (719, 29592), (822, 25884), (1096, 19413), (1233, 17256), (1438, 14796), (1644, 12942), (2157, 9864), (2466, 8628), (2876, 7398), (3288, 6471), (3699, 5752), (4314, 4932)]