21269584

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{11171}}^1$

素因数の和:11203

約数の個数: 40

約数和(自身を含む): 49871808

約数和(自身を除く): 28602224

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 1904, 11171, 22342, 44684, 78197, 89368, 156394, 178736, 189907, 312788, 379814, 625576, 759628, 1251152, 1329349, 1519256, 2658698, 3038512, 5317396, 10634792, 21269584]

約数ペア:

[(1, 21269584), (2, 10634792), (4, 5317396), (7, 3038512), (8, 2658698), (14, 1519256), (16, 1329349), (17, 1251152), (28, 759628), (34, 625576), (56, 379814), (68, 312788), (112, 189907), (119, 178736), (136, 156394), (238, 89368), (272, 78197), (476, 44684), (952, 22342), (1904, 11171)]