21183575

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{277}}^1$

素因数の和:336

約数の個数: 48

約数和(自身を含む): 33093120

約数和(自身を除く): 11909545

約数列:

[1, 5, 7, 19, 23, 25, 35, 95, 115, 133, 161, 175, 277, 437, 475, 575, 665, 805, 1385, 1939, 2185, 3059, 3325, 4025, 5263, 6371, 6925, 9695, 10925, 15295, 26315, 31855, 36841, 44597, 48475, 76475, 121049, 131575, 159275, 184205, 222985, 605245, 847343, 921025, 1114925, 3026225, 4236715, 21183575]

約数ペア:

[(1, 21183575), (5, 4236715), (7, 3026225), (19, 1114925), (23, 921025), (25, 847343), (35, 605245), (95, 222985), (115, 184205), (133, 159275), (161, 131575), (175, 121049), (277, 76475), (437, 48475), (475, 44597), (575, 36841), (665, 31855), (805, 26315), (1385, 15295), (1939, 10925), (2185, 9695), (3059, 6925), (3325, 6371), (4025, 5263)]