21875584

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1$

素因数の和:231

約数の個数: 64

約数和(自身を含む): 46512000

約数和(自身を除く): 24636416

約数列:

[1, 2, 4, 8, 16, 31, 32, 37, 62, 64, 74, 124, 128, 148, 149, 248, 296, 298, 496, 592, 596, 992, 1147, 1184, 1192, 1984, 2294, 2368, 2384, 3968, 4588, 4619, 4736, 4768, 5513, 9176, 9238, 9536, 11026, 18352, 18476, 19072, 22052, 36704, 36952, 44104, 73408, 73904, 88208, 146816, 147808, 170903, 176416, 295616, 341806, 352832, 591232, 683612, 705664, 1367224, 2734448, 5468896, 10937792, 21875584]

約数ペア:

[(1, 21875584), (2, 10937792), (4, 5468896), (8, 2734448), (16, 1367224), (31, 705664), (32, 683612), (37, 591232), (62, 352832), (64, 341806), (74, 295616), (124, 176416), (128, 170903), (148, 147808), (149, 146816), (248, 88208), (296, 73904), (298, 73408), (496, 44104), (592, 36952), (596, 36704), (992, 22052), (1147, 19072), (1184, 18476), (1192, 18352), (1984, 11026), (2294, 9536), (2368, 9238), (2384, 9176), (3968, 5513), (4588, 4768), (4619, 4736)]