21281736

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{967}}^1$

素因数の和:1114

約数の個数: 64

約数和(自身を含む): 61332480

約数和(自身を除く): 40050744

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 131, 168, 262, 393, 524, 786, 917, 967, 1048, 1572, 1834, 1934, 2751, 2901, 3144, 3668, 3868, 5502, 5802, 6769, 7336, 7736, 11004, 11604, 13538, 20307, 22008, 23208, 27076, 40614, 54152, 81228, 126677, 162456, 253354, 380031, 506708, 760062, 886739, 1013416, 1520124, 1773478, 2660217, 3040248, 3546956, 5320434, 7093912, 10640868, 21281736]

約数ペア:

[(1, 21281736), (2, 10640868), (3, 7093912), (4, 5320434), (6, 3546956), (7, 3040248), (8, 2660217), (12, 1773478), (14, 1520124), (21, 1013416), (24, 886739), (28, 760062), (42, 506708), (56, 380031), (84, 253354), (131, 162456), (168, 126677), (262, 81228), (393, 54152), (524, 40614), (786, 27076), (917, 23208), (967, 22008), (1048, 20307), (1572, 13538), (1834, 11604), (1934, 11004), (2751, 7736), (2901, 7336), (3144, 6769), (3668, 5802), (3868, 5502)]