21381184

素因数分解:

$2^6\times {\mathrm{11}}^3\times {\mathrm{251}}^1$

素因数の和:296

約数の個数: 56

約数和(自身を含む): 46853856

約数和(自身を除く): 25472672

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 121, 176, 242, 251, 352, 484, 502, 704, 968, 1004, 1331, 1936, 2008, 2662, 2761, 3872, 4016, 5324, 5522, 7744, 8032, 10648, 11044, 16064, 21296, 22088, 30371, 42592, 44176, 60742, 85184, 88352, 121484, 176704, 242968, 334081, 485936, 668162, 971872, 1336324, 1943744, 2672648, 5345296, 10690592, 21381184]

約数ペア:

[(1, 21381184), (2, 10690592), (4, 5345296), (8, 2672648), (11, 1943744), (16, 1336324), (22, 971872), (32, 668162), (44, 485936), (64, 334081), (88, 242968), (121, 176704), (176, 121484), (242, 88352), (251, 85184), (352, 60742), (484, 44176), (502, 42592), (704, 30371), (968, 22088), (1004, 21296), (1331, 16064), (1936, 11044), (2008, 10648), (2662, 8032), (2761, 7744), (3872, 5522), (4016, 5324)]