21714872

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 43982640

約数和(自身を除く): 22267768

約数列:

[1, 2, 4, 8, 19, 38, 73, 76, 103, 146, 152, 206, 292, 361, 412, 584, 722, 824, 1387, 1444, 1957, 2774, 2888, 3914, 5548, 7519, 7828, 11096, 15038, 15656, 26353, 30076, 37183, 52706, 60152, 74366, 105412, 142861, 148732, 210824, 285722, 297464, 571444, 1142888, 2714359, 5428718, 10857436, 21714872]

約数ペア:

[(1, 21714872), (2, 10857436), (4, 5428718), (8, 2714359), (19, 1142888), (38, 571444), (73, 297464), (76, 285722), (103, 210824), (146, 148732), (152, 142861), (206, 105412), (292, 74366), (361, 60152), (412, 52706), (584, 37183), (722, 30076), (824, 26353), (1387, 15656), (1444, 15038), (1957, 11096), (2774, 7828), (2888, 7519), (3914, 5548)]