21975856

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{449}}^1$

素因数の和:506

約数の個数: 80

約数和(自身を含む): 53568000

約数和(自身を除く): 31592144

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 23, 28, 38, 46, 56, 76, 92, 112, 133, 152, 161, 184, 266, 304, 322, 368, 437, 449, 532, 644, 874, 898, 1064, 1288, 1748, 1796, 2128, 2576, 3059, 3143, 3496, 3592, 6118, 6286, 6992, 7184, 8531, 10327, 12236, 12572, 17062, 20654, 24472, 25144, 34124, 41308, 48944, 50288, 59717, 68248, 72289, 82616, 119434, 136496, 144578, 165232, 196213, 238868, 289156, 392426, 477736, 578312, 784852, 955472, 1156624, 1373491, 1569704, 2746982, 3139408, 5493964, 10987928, 21975856]

約数ペア:

[(1, 21975856), (2, 10987928), (4, 5493964), (7, 3139408), (8, 2746982), (14, 1569704), (16, 1373491), (19, 1156624), (23, 955472), (28, 784852), (38, 578312), (46, 477736), (56, 392426), (76, 289156), (92, 238868), (112, 196213), (133, 165232), (152, 144578), (161, 136496), (184, 119434), (266, 82616), (304, 72289), (322, 68248), (368, 59717), (437, 50288), (449, 48944), (532, 41308), (644, 34124), (874, 25144), (898, 24472), (1064, 20654), (1288, 17062), (1748, 12572), (1796, 12236), (2128, 10327), (2576, 8531), (3059, 7184), (3143, 6992), (3496, 6286), (3592, 6118)]